Home / 723,135.33-997,910.89-400,842.61

Finding the Fourth Proportional to 723,135.33, 997,910.89 and 400,842.61

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Solution

The fourth proportional to 723,135.33, 997,910.89 and 400,842.61 is: 553,154.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,135.33 : 997,910.89 = 400,842.61 : x
  2. Step 2: Convert to fraction form
    723,135.33/997,910.89 = 400,842.61/x
  3. Step 3: Cross multiply
    723,135.33x = 997,910.89 × 400,842.61
  4. Step 4: Simplify right side
    723,135.33x = 400,005,202,198.14
  5. Step 5: Solve for x
    x = 400,005,202,198.14/723,135.33
  6. Step 6: Final answer
    x = 553,154.00

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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.