Home / 830,220.48-1,245,331.20-297,774.72

Finding the Fourth Proportional to 830,220.48, 1,245,331.20 and 297,774.72

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Solution

The fourth proportional to 830,220.48, 1,245,331.20 and 297,774.72 is: 446,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,220.48 : 1,245,331.20 = 297,774.72 : x
  2. Step 2: Convert to fraction form
    830,220.48/1,245,331.20 = 297,774.72/x
  3. Step 3: Cross multiply
    830,220.48x = 1,245,331.20 × 297,774.72
  4. Step 4: Simplify right side
    830,220.48x = 370,828,149,387.26
  5. Step 5: Solve for x
    x = 370,828,149,387.26/830,220.48
  6. Step 6: Final answer
    x = 446,662.25

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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.