Home / 497,721.60-746,582.40-287,769.60

Finding the Fourth Proportional to 497,721.60, 746,582.40 and 287,769.60

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Solution

The fourth proportional to 497,721.60, 746,582.40 and 287,769.60 is: 431,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,721.60 : 746,582.40 = 287,769.60 : x
  2. Step 2: Convert to fraction form
    497,721.60/746,582.40 = 287,769.60/x
  3. Step 3: Cross multiply
    497,721.60x = 746,582.40 × 287,769.60
  4. Step 4: Simplify right side
    497,721.60x = 214,843,718,615.04
  5. Step 5: Solve for x
    x = 214,843,718,615.04/497,721.60
  6. Step 6: Final answer
    x = 431,654.40

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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.