Home / 672,948.28-928,143.48-431,253.32

Finding the Fourth Proportional to 672,948.28, 928,143.48 and 431,253.32

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Solution

The fourth proportional to 672,948.28, 928,143.48 and 431,253.32 is: 594,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,948.28 : 928,143.48 = 431,253.32 : x
  2. Step 2: Convert to fraction form
    672,948.28/928,143.48 = 431,253.32/x
  3. Step 3: Cross multiply
    672,948.28x = 928,143.48 × 431,253.32
  4. Step 4: Simplify right side
    672,948.28x = 400,264,955,030.09
  5. Step 5: Solve for x
    x = 400,264,955,030.09/672,948.28
  6. Step 6: Final answer
    x = 594,793.05

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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.