Home / 970,072.20-1,455,108.30-830,104.20

Finding the Fourth Proportional to 970,072.20, 1,455,108.30 and 830,104.20

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Solution

The fourth proportional to 970,072.20, 1,455,108.30 and 830,104.20 is: 1,245,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,072.20 : 1,455,108.30 = 830,104.20 : x
  2. Step 2: Convert to fraction form
    970,072.20/1,455,108.30 = 830,104.20/x
  3. Step 3: Cross multiply
    970,072.20x = 1,455,108.30 × 830,104.20
  4. Step 4: Simplify right side
    970,072.20x = 1,207,891,511,284.86
  5. Step 5: Solve for x
    x = 1,207,891,511,284.86/970,072.20
  6. Step 6: Final answer
    x = 1,245,156.30

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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.