Home / 870,702.21-1,306,557.27-365,217.66

Finding the Fourth Proportional to 870,702.21, 1,306,557.27 and 365,217.66

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Solution

The fourth proportional to 870,702.21, 1,306,557.27 and 365,217.66 is: 548,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,702.21 : 1,306,557.27 = 365,217.66 : x
  2. Step 2: Convert to fraction form
    870,702.21/1,306,557.27 = 365,217.66/x
  3. Step 3: Cross multiply
    870,702.21x = 1,306,557.27 × 365,217.66
  4. Step 4: Simplify right side
    870,702.21x = 477,177,788,805.39
  5. Step 5: Solve for x
    x = 477,177,788,805.39/870,702.21
  6. Step 6: Final answer
    x = 548,037.87

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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.