Home / 718,899.20-1,078,348.80-658,246.40

Finding the Fourth Proportional to 718,899.20, 1,078,348.80 and 658,246.40

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Solution

The fourth proportional to 718,899.20, 1,078,348.80 and 658,246.40 is: 987,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,899.20 : 1,078,348.80 = 658,246.40 : x
  2. Step 2: Convert to fraction form
    718,899.20/1,078,348.80 = 658,246.40/x
  3. Step 3: Cross multiply
    718,899.20x = 1,078,348.80 × 658,246.40
  4. Step 4: Simplify right side
    718,899.20x = 709,819,215,544.32
  5. Step 5: Solve for x
    x = 709,819,215,544.32/718,899.20
  6. Step 6: Final answer
    x = 987,369.60

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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.