Home / 723,185.98-998,044.50-400,909.66

Finding the Fourth Proportional to 723,185.98, 998,044.50 and 400,909.66

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Solution

The fourth proportional to 723,185.98, 998,044.50 and 400,909.66 is: 553,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,185.98 : 998,044.50 = 400,909.66 : x
  2. Step 2: Convert to fraction form
    723,185.98/998,044.50 = 400,909.66/x
  3. Step 3: Cross multiply
    723,185.98x = 998,044.50 × 400,909.66
  4. Step 4: Simplify right side
    723,185.98x = 400,125,681,159.87
  5. Step 5: Solve for x
    x = 400,125,681,159.87/723,185.98
  6. Step 6: Final answer
    x = 553,281.86

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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.