Home / 686,191.20-1,029,286.80-462,242.40

Finding the Fourth Proportional to 686,191.20, 1,029,286.80 and 462,242.40

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Solution

The fourth proportional to 686,191.20, 1,029,286.80 and 462,242.40 is: 693,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,191.20 : 1,029,286.80 = 462,242.40 : x
  2. Step 2: Convert to fraction form
    686,191.20/1,029,286.80 = 462,242.40/x
  3. Step 3: Cross multiply
    686,191.20x = 1,029,286.80 × 462,242.40
  4. Step 4: Simplify right side
    686,191.20x = 475,780,000,720.32
  5. Step 5: Solve for x
    x = 475,780,000,720.32/686,191.20
  6. Step 6: Final answer
    x = 693,363.60

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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.