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Finding the Fourth Proportional to 637,383.09, 879,652.20 and 475,957.89

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Solution

The fourth proportional to 637,383.09, 879,652.20 and 475,957.89 is: 656,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,383.09 : 879,652.20 = 475,957.89 : x
  2. Step 2: Convert to fraction form
    637,383.09/879,652.20 = 475,957.89/x
  3. Step 3: Cross multiply
    637,383.09x = 879,652.20 × 475,957.89
  4. Step 4: Simplify right side
    637,383.09x = 418,677,406,830.70
  5. Step 5: Solve for x
    x = 418,677,406,830.70/637,383.09
  6. Step 6: Final answer
    x = 656,869.33

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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.