Home / 718,266.30-1,077,399.45-419,084.70

Finding the Fourth Proportional to 718,266.30, 1,077,399.45 and 419,084.70

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Solution

The fourth proportional to 718,266.30, 1,077,399.45 and 419,084.70 is: 628,627.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,266.30 : 1,077,399.45 = 419,084.70 : x
  2. Step 2: Convert to fraction form
    718,266.30/1,077,399.45 = 419,084.70/x
  3. Step 3: Cross multiply
    718,266.30x = 1,077,399.45 × 419,084.70
  4. Step 4: Simplify right side
    718,266.30x = 451,521,625,283.42
  5. Step 5: Solve for x
    x = 451,521,625,283.42/718,266.30
  6. Step 6: Final answer
    x = 628,627.05

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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.