Home / 487,824.95-731,737.43-321,574.07

Finding the Fourth Proportional to 487,824.95, 731,737.43 and 321,574.07

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Solution

The fourth proportional to 487,824.95, 731,737.43 and 321,574.07 is: 482,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,824.95 : 731,737.43 = 321,574.07 : x
  2. Step 2: Convert to fraction form
    487,824.95/731,737.43 = 321,574.07/x
  3. Step 3: Cross multiply
    487,824.95x = 731,737.43 × 321,574.07
  4. Step 4: Simplify right side
    487,824.95x = 235,307,786,169.72
  5. Step 5: Solve for x
    x = 235,307,786,169.72/487,824.95
  6. Step 6: Final answer
    x = 482,361.11

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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.