Home / 738,438.72-1,019,385.64-432,472.56

Finding the Fourth Proportional to 738,438.72, 1,019,385.64 and 432,472.56

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Solution

The fourth proportional to 738,438.72, 1,019,385.64 and 432,472.56 is: 597,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,438.72 : 1,019,385.64 = 432,472.56 : x
  2. Step 2: Convert to fraction form
    738,438.72/1,019,385.64 = 432,472.56/x
  3. Step 3: Cross multiply
    738,438.72x = 1,019,385.64 × 432,472.56
  4. Step 4: Simplify right side
    738,438.72x = 440,856,317,358.04
  5. Step 5: Solve for x
    x = 440,856,317,358.04/738,438.72
  6. Step 6: Final answer
    x = 597,011.38

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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.