Home / 738,711.28-1,019,182.26-451,932.40

Finding the Fourth Proportional to 738,711.28, 1,019,182.26 and 451,932.40

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Solution

The fourth proportional to 738,711.28, 1,019,182.26 and 451,932.40 is: 623,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,711.28 : 1,019,182.26 = 451,932.40 : x
  2. Step 2: Convert to fraction form
    738,711.28/1,019,182.26 = 451,932.40/x
  3. Step 3: Cross multiply
    738,711.28x = 1,019,182.26 × 451,932.40
  4. Step 4: Simplify right side
    738,711.28x = 460,601,484,799.22
  5. Step 5: Solve for x
    x = 460,601,484,799.22/738,711.28
  6. Step 6: Final answer
    x = 623,520.31

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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.