Home / 420,565.05-631,044.54-183,877.11

Finding the Fourth Proportional to 420,565.05, 631,044.54 and 183,877.11

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Solution

The fourth proportional to 420,565.05, 631,044.54 and 183,877.11 is: 275,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,565.05 : 631,044.54 = 183,877.11 : x
  2. Step 2: Convert to fraction form
    420,565.05/631,044.54 = 183,877.11/x
  3. Step 3: Cross multiply
    420,565.05x = 631,044.54 × 183,877.11
  4. Step 4: Simplify right side
    420,565.05x = 116,034,646,296.48
  5. Step 5: Solve for x
    x = 116,034,646,296.48/420,565.05
  6. Step 6: Final answer
    x = 275,901.78

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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.