Home / 686,191.70-1,029,287.55-462,242.90

Finding the Fourth Proportional to 686,191.70, 1,029,287.55 and 462,242.90

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Solution

The fourth proportional to 686,191.70, 1,029,287.55 and 462,242.90 is: 693,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,191.70 : 1,029,287.55 = 462,242.90 : x
  2. Step 2: Convert to fraction form
    686,191.70/1,029,287.55 = 462,242.90/x
  3. Step 3: Cross multiply
    686,191.70x = 1,029,287.55 × 462,242.90
  4. Step 4: Simplify right side
    686,191.70x = 475,780,862,045.90
  5. Step 5: Solve for x
    x = 475,780,862,045.90/686,191.70
  6. Step 6: Final answer
    x = 693,364.35

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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.