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Finding the Fourth Proportional to 493,387.34, 736,510.89 and 433,601.78

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Solution

The fourth proportional to 493,387.34, 736,510.89 and 433,601.78 is: 647,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,387.34 : 736,510.89 = 433,601.78 : x
  2. Step 2: Convert to fraction form
    493,387.34/736,510.89 = 433,601.78/x
  3. Step 3: Cross multiply
    493,387.34x = 736,510.89 × 433,601.78
  4. Step 4: Simplify right side
    493,387.34x = 319,352,430,725.38
  5. Step 5: Solve for x
    x = 319,352,430,725.38/493,387.34
  6. Step 6: Final answer
    x = 647,265.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.