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Finding the Fourth Proportional to 637,900.31, 956,852.60 and 437,613.64

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Solution

The fourth proportional to 637,900.31, 956,852.60 and 437,613.64 is: 656,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,900.31 : 956,852.60 = 437,613.64 : x
  2. Step 2: Convert to fraction form
    637,900.31/956,852.60 = 437,613.64/x
  3. Step 3: Cross multiply
    637,900.31x = 956,852.60 × 437,613.64
  4. Step 4: Simplify right side
    637,900.31x = 418,731,744,649.26
  5. Step 5: Solve for x
    x = 418,731,744,649.26/637,900.31
  6. Step 6: Final answer
    x = 656,421.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.