Home / 723,042.80-997,781.76-400,745.96

Finding the Fourth Proportional to 723,042.80, 997,781.76 and 400,745.96

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Solution

The fourth proportional to 723,042.80, 997,781.76 and 400,745.96 is: 553,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,042.80 : 997,781.76 = 400,745.96 : x
  2. Step 2: Convert to fraction form
    723,042.80/997,781.76 = 400,745.96/x
  3. Step 3: Cross multiply
    723,042.80x = 997,781.76 × 400,745.96
  4. Step 4: Simplify right side
    723,042.80x = 399,857,009,281.69
  5. Step 5: Solve for x
    x = 399,857,009,281.69/723,042.80
  6. Step 6: Final answer
    x = 553,019.83

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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.