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Finding the Fourth Proportional to 738,100.62, 1,018,654.11 and 451,809.90

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Solution

The fourth proportional to 738,100.62, 1,018,654.11 and 451,809.90 is: 623,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,100.62 : 1,018,654.11 = 451,809.90 : x
  2. Step 2: Convert to fraction form
    738,100.62/1,018,654.11 = 451,809.90/x
  3. Step 3: Cross multiply
    738,100.62x = 1,018,654.11 × 451,809.90
  4. Step 4: Simplify right side
    738,100.62x = 460,238,011,573.69
  5. Step 5: Solve for x
    x = 460,238,011,573.69/738,100.62
  6. Step 6: Final answer
    x = 623,543.73

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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.