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Finding the Fourth Proportional to 561,695.80, 787,773.80 and 561,695.80

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Solution

The fourth proportional to 561,695.80, 787,773.80 and 561,695.80 is: 787,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,695.80 : 787,773.80 = 561,695.80 : x
  2. Step 2: Convert to fraction form
    561,695.80/787,773.80 = 561,695.80/x
  3. Step 3: Cross multiply
    561,695.80x = 787,773.80 × 561,695.80
  4. Step 4: Simplify right side
    561,695.80x = 442,489,234,810.04
  5. Step 5: Solve for x
    x = 442,489,234,810.04/561,695.80
  6. Step 6: Final answer
    x = 787,773.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.