Home / 900,613.52-1,242,837.20-492,711.20

Finding the Fourth Proportional to 900,613.52, 1,242,837.20 and 492,711.20

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Solution

The fourth proportional to 900,613.52, 1,242,837.20 and 492,711.20 is: 679,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,613.52 : 1,242,837.20 = 492,711.20 : x
  2. Step 2: Convert to fraction form
    900,613.52/1,242,837.20 = 492,711.20/x
  3. Step 3: Cross multiply
    900,613.52x = 1,242,837.20 × 492,711.20
  4. Step 4: Simplify right side
    900,613.52x = 612,359,808,216.64
  5. Step 5: Solve for x
    x = 612,359,808,216.64/900,613.52
  6. Step 6: Final answer
    x = 679,936.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.