Home / 693,132.40-1,040,159.40-393,612.40

Finding the Fourth Proportional to 693,132.40, 1,040,159.40 and 393,612.40

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Solution

The fourth proportional to 693,132.40, 1,040,159.40 and 393,612.40 is: 590,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,132.40 : 1,040,159.40 = 393,612.40 : x
  2. Step 2: Convert to fraction form
    693,132.40/1,040,159.40 = 393,612.40/x
  3. Step 3: Cross multiply
    693,132.40x = 1,040,159.40 × 393,612.40
  4. Step 4: Simplify right side
    693,132.40x = 409,419,637,816.56
  5. Step 5: Solve for x
    x = 409,419,637,816.56/693,132.40
  6. Step 6: Final answer
    x = 590,680.28

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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.