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Finding the Fourth Proportional to 497,668.80, 746,503.20 and 338,001.60

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Solution

The fourth proportional to 497,668.80, 746,503.20 and 338,001.60 is: 507,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,668.80 : 746,503.20 = 338,001.60 : x
  2. Step 2: Convert to fraction form
    497,668.80/746,503.20 = 338,001.60/x
  3. Step 3: Cross multiply
    497,668.80x = 746,503.20 × 338,001.60
  4. Step 4: Simplify right side
    497,668.80x = 252,319,276,005.12
  5. Step 5: Solve for x
    x = 252,319,276,005.12/497,668.80
  6. Step 6: Final answer
    x = 507,002.40

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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.