Home / 923,963.10-1,385,703.92-391,209.90

Finding the Fourth Proportional to 923,963.10, 1,385,703.92 and 391,209.90

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Solution

The fourth proportional to 923,963.10, 1,385,703.92 and 391,209.90 is: 586,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,963.10 : 1,385,703.92 = 391,209.90 : x
  2. Step 2: Convert to fraction form
    923,963.10/1,385,703.92 = 391,209.90/x
  3. Step 3: Cross multiply
    923,963.10x = 1,385,703.92 × 391,209.90
  4. Step 4: Simplify right side
    923,963.10x = 542,101,091,972.81
  5. Step 5: Solve for x
    x = 542,101,091,972.81/923,963.10
  6. Step 6: Final answer
    x = 586,712.92

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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.