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Finding the Fourth Proportional to 684,260.32, 944,240.96 and 378,318.88

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Solution

The fourth proportional to 684,260.32, 944,240.96 and 378,318.88 is: 522,058.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,260.32 : 944,240.96 = 378,318.88 : x
  2. Step 2: Convert to fraction form
    684,260.32/944,240.96 = 378,318.88/x
  3. Step 3: Cross multiply
    684,260.32x = 944,240.96 × 378,318.88
  4. Step 4: Simplify right side
    684,260.32x = 357,224,182,437.33
  5. Step 5: Solve for x
    x = 357,224,182,437.33/684,260.32
  6. Step 6: Final answer
    x = 522,058.89

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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.