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Finding the Fourth Proportional to 607,298.52, 838,318.98 and 392,456.28

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Solution

The fourth proportional to 607,298.52, 838,318.98 and 392,456.28 is: 541,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,298.52 : 838,318.98 = 392,456.28 : x
  2. Step 2: Convert to fraction form
    607,298.52/838,318.98 = 392,456.28/x
  3. Step 3: Cross multiply
    607,298.52x = 838,318.98 × 392,456.28
  4. Step 4: Simplify right side
    607,298.52x = 329,003,548,344.19
  5. Step 5: Solve for x
    x = 329,003,548,344.19/607,298.52
  6. Step 6: Final answer
    x = 541,749.30

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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.