Home / 970,280.20-1,455,420.30-830,312.20

Finding the Fourth Proportional to 970,280.20, 1,455,420.30 and 830,312.20

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Solution

The fourth proportional to 970,280.20, 1,455,420.30 and 830,312.20 is: 1,245,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,280.20 : 1,455,420.30 = 830,312.20 : x
  2. Step 2: Convert to fraction form
    970,280.20/1,455,420.30 = 830,312.20/x
  3. Step 3: Cross multiply
    970,280.20x = 1,455,420.30 × 830,312.20
  4. Step 4: Simplify right side
    970,280.20x = 1,208,453,231,217.66
  5. Step 5: Solve for x
    x = 1,208,453,231,217.66/970,280.20
  6. Step 6: Final answer
    x = 1,245,468.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.