Home / 688,476.40-1,031,219.12-332,744.40

Finding the Fourth Proportional to 688,476.40, 1,031,219.12 and 332,744.40

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Solution

The fourth proportional to 688,476.40, 1,031,219.12 and 332,744.40 is: 498,393.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,476.40 : 1,031,219.12 = 332,744.40 : x
  2. Step 2: Convert to fraction form
    688,476.40/1,031,219.12 = 332,744.40/x
  3. Step 3: Cross multiply
    688,476.40x = 1,031,219.12 × 332,744.40
  4. Step 4: Simplify right side
    688,476.40x = 343,132,387,352.93
  5. Step 5: Solve for x
    x = 343,132,387,352.93/688,476.40
  6. Step 6: Final answer
    x = 498,393.83

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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.