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Finding the Fourth Proportional to 479,637.76, 720,273.16 and 459,575.68

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Solution

The fourth proportional to 479,637.76, 720,273.16 and 459,575.68 is: 690,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,637.76 : 720,273.16 = 459,575.68 : x
  2. Step 2: Convert to fraction form
    479,637.76/720,273.16 = 459,575.68/x
  3. Step 3: Cross multiply
    479,637.76x = 720,273.16 × 459,575.68
  4. Step 4: Simplify right side
    479,637.76x = 331,020,027,292.75
  5. Step 5: Solve for x
    x = 331,020,027,292.75/479,637.76
  6. Step 6: Final answer
    x = 690,145.89

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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.