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Finding the Fourth Proportional to 684,362.92, 944,426.95 and 378,459.88

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Solution

The fourth proportional to 684,362.92, 944,426.95 and 378,459.88 is: 522,278.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,362.92 : 944,426.95 = 378,459.88 : x
  2. Step 2: Convert to fraction form
    684,362.92/944,426.95 = 378,459.88/x
  3. Step 3: Cross multiply
    684,362.92x = 944,426.95 × 378,459.88
  4. Step 4: Simplify right side
    684,362.92x = 357,427,708,273.47
  5. Step 5: Solve for x
    x = 357,427,708,273.47/684,362.92
  6. Step 6: Final answer
    x = 522,278.02

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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.