Home / 688,617.16-950,380.38-386,869.48

Finding the Fourth Proportional to 688,617.16, 950,380.38 and 386,869.48

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Solution

The fourth proportional to 688,617.16, 950,380.38 and 386,869.48 is: 533,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,617.16 : 950,380.38 = 386,869.48 : x
  2. Step 2: Convert to fraction form
    688,617.16/950,380.38 = 386,869.48/x
  3. Step 3: Cross multiply
    688,617.16x = 950,380.38 × 386,869.48
  4. Step 4: Simplify right side
    688,617.16x = 367,673,161,036.85
  5. Step 5: Solve for x
    x = 367,673,161,036.85/688,617.16
  6. Step 6: Final answer
    x = 533,929.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.