Home / 718,885.20-1,078,327.80-344,715.60

Finding the Fourth Proportional to 718,885.20, 1,078,327.80 and 344,715.60

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Solution

The fourth proportional to 718,885.20, 1,078,327.80 and 344,715.60 is: 517,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,885.20 : 1,078,327.80 = 344,715.60 : x
  2. Step 2: Convert to fraction form
    718,885.20/1,078,327.80 = 344,715.60/x
  3. Step 3: Cross multiply
    718,885.20x = 1,078,327.80 × 344,715.60
  4. Step 4: Simplify right side
    718,885.20x = 371,716,414,573.68
  5. Step 5: Solve for x
    x = 371,716,414,573.68/718,885.20
  6. Step 6: Final answer
    x = 517,073.40

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Similar ratio
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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.