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Finding the Fourth Proportional to 399,920.74, 600,032.62 and 240,108.28

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Solution

The fourth proportional to 399,920.74, 600,032.62 and 240,108.28 is: 360,253.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,920.74 : 600,032.62 = 240,108.28 : x
  2. Step 2: Convert to fraction form
    399,920.74/600,032.62 = 240,108.28/x
  3. Step 3: Cross multiply
    399,920.74x = 600,032.62 × 240,108.28
  4. Step 4: Simplify right side
    399,920.74x = 144,072,800,332.09
  5. Step 5: Solve for x
    x = 144,072,800,332.09/399,920.74
  6. Step 6: Final answer
    x = 360,253.39

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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.