Home / 747,800-1,121,702.40-186,834.56

Finding the Fourth Proportional to 747,800, 1,121,702.40 and 186,834.56

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Solution

The fourth proportional to 747,800, 1,121,702.40 and 186,834.56 is: 280,252.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,800 : 1,121,702.40 = 186,834.56 : x
  2. Step 2: Convert to fraction form
    747,800/1,121,702.40 = 186,834.56/x
  3. Step 3: Cross multiply
    747,800x = 1,121,702.40 × 186,834.56
  4. Step 4: Simplify right side
    747,800x = 209,572,774,354.94
  5. Step 5: Solve for x
    x = 209,572,774,354.94/747,800
  6. Step 6: Final answer
    x = 280,252.44

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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.