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Finding the Fourth Proportional to 404,733.60, 607,100.40 and 387,456.30

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Solution

The fourth proportional to 404,733.60, 607,100.40 and 387,456.30 is: 581,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,733.60 : 607,100.40 = 387,456.30 : x
  2. Step 2: Convert to fraction form
    404,733.60/607,100.40 = 387,456.30/x
  3. Step 3: Cross multiply
    404,733.60x = 607,100.40 × 387,456.30
  4. Step 4: Simplify right side
    404,733.60x = 235,224,874,712.52
  5. Step 5: Solve for x
    x = 235,224,874,712.52/404,733.60
  6. Step 6: Final answer
    x = 581,184.45

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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.