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Finding the Fourth Proportional to 440,349.60, 607,934.52 and 289,884

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Solution

The fourth proportional to 440,349.60, 607,934.52 and 289,884 is: 400,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,349.60 : 607,934.52 = 289,884 : x
  2. Step 2: Convert to fraction form
    440,349.60/607,934.52 = 289,884/x
  3. Step 3: Cross multiply
    440,349.60x = 607,934.52 × 289,884
  4. Step 4: Simplify right side
    440,349.60x = 176,230,490,395.68
  5. Step 5: Solve for x
    x = 176,230,490,395.68/440,349.60
  6. Step 6: Final answer
    x = 400,205.86

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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.