Home / 678,689.60-1,018,034.40-584,211.20

Finding the Fourth Proportional to 678,689.60, 1,018,034.40 and 584,211.20

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Solution

The fourth proportional to 678,689.60, 1,018,034.40 and 584,211.20 is: 876,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,689.60 : 1,018,034.40 = 584,211.20 : x
  2. Step 2: Convert to fraction form
    678,689.60/1,018,034.40 = 584,211.20/x
  3. Step 3: Cross multiply
    678,689.60x = 1,018,034.40 × 584,211.20
  4. Step 4: Simplify right side
    678,689.60x = 594,747,098,465.28
  5. Step 5: Solve for x
    x = 594,747,098,465.28/678,689.60
  6. Step 6: Final answer
    x = 876,316.80

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Similar ratio
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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.