Home / 688,920.40-1,034,158.20-531,845.20

Finding the Fourth Proportional to 688,920.40, 1,034,158.20 and 531,845.20

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Solution

The fourth proportional to 688,920.40, 1,034,158.20 and 531,845.20 is: 798,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,920.40 : 1,034,158.20 = 531,845.20 : x
  2. Step 2: Convert to fraction form
    688,920.40/1,034,158.20 = 531,845.20/x
  3. Step 3: Cross multiply
    688,920.40x = 1,034,158.20 × 531,845.20
  4. Step 4: Simplify right side
    688,920.40x = 550,012,074,710.64
  5. Step 5: Solve for x
    x = 550,012,074,710.64/688,920.40
  6. Step 6: Final answer
    x = 798,368.11

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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.