Home / 961,728.72-1,442,724.30-400,632

Finding the Fourth Proportional to 961,728.72, 1,442,724.30 and 400,632

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Solution

The fourth proportional to 961,728.72, 1,442,724.30 and 400,632 is: 601,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,728.72 : 1,442,724.30 = 400,632 : x
  2. Step 2: Convert to fraction form
    961,728.72/1,442,724.30 = 400,632/x
  3. Step 3: Cross multiply
    961,728.72x = 1,442,724.30 × 400,632
  4. Step 4: Simplify right side
    961,728.72x = 578,001,521,757.60
  5. Step 5: Solve for x
    x = 578,001,521,757.60/961,728.72
  6. Step 6: Final answer
    x = 601,002.66

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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.