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Finding the Fourth Proportional to 577,544.83, 865,560.65 and 277,428.29

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Solution

The fourth proportional to 577,544.83, 865,560.65 and 277,428.29 is: 415,778.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,544.83 : 865,560.65 = 277,428.29 : x
  2. Step 2: Convert to fraction form
    577,544.83/865,560.65 = 277,428.29/x
  3. Step 3: Cross multiply
    577,544.83x = 865,560.65 × 277,428.29
  4. Step 4: Simplify right side
    577,544.83x = 240,131,005,305.84
  5. Step 5: Solve for x
    x = 240,131,005,305.84/577,544.83
  6. Step 6: Final answer
    x = 415,778.99

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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.