Home / 487,827.71-731,741.57-321,576.83

Finding the Fourth Proportional to 487,827.71, 731,741.57 and 321,576.83

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Solution

The fourth proportional to 487,827.71, 731,741.57 and 321,576.83 is: 482,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,827.71 : 731,741.57 = 321,576.83 : x
  2. Step 2: Convert to fraction form
    487,827.71/731,741.57 = 321,576.83/x
  3. Step 3: Cross multiply
    487,827.71x = 731,741.57 × 321,576.83
  4. Step 4: Simplify right side
    487,827.71x = 235,311,129,193.23
  5. Step 5: Solve for x
    x = 235,311,129,193.23/487,827.71
  6. Step 6: Final answer
    x = 482,365.24

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1.5x scale

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.