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Finding the Fourth Proportional to 580,710.47, 869,664.07 and 349,233.78

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Solution

The fourth proportional to 580,710.47, 869,664.07 and 349,233.78 is: 523,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,710.47 : 869,664.07 = 349,233.78 : x
  2. Step 2: Convert to fraction form
    580,710.47/869,664.07 = 349,233.78/x
  3. Step 3: Cross multiply
    580,710.47x = 869,664.07 × 349,233.78
  4. Step 4: Simplify right side
    580,710.47x = 303,716,068,319.99
  5. Step 5: Solve for x
    x = 303,716,068,319.99/580,710.47
  6. Step 6: Final answer
    x = 523,007.74

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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.