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Finding the Fourth Proportional to 723,887.72, 999,053.65 and 417,963.59

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Solution

The fourth proportional to 723,887.72, 999,053.65 and 417,963.59 is: 576,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,887.72 : 999,053.65 = 417,963.59 : x
  2. Step 2: Convert to fraction form
    723,887.72/999,053.65 = 417,963.59/x
  3. Step 3: Cross multiply
    723,887.72x = 999,053.65 × 417,963.59
  4. Step 4: Simplify right side
    723,887.72x = 417,568,050,156.60
  5. Step 5: Solve for x
    x = 417,568,050,156.60/723,887.72
  6. Step 6: Final answer
    x = 576,840.91

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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.