Home / 486,971.04-672,007.15-272,112.87

Finding the Fourth Proportional to 486,971.04, 672,007.15 and 272,112.87

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Solution

The fourth proportional to 486,971.04, 672,007.15 and 272,112.87 is: 375,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,971.04 : 672,007.15 = 272,112.87 : x
  2. Step 2: Convert to fraction form
    486,971.04/672,007.15 = 272,112.87/x
  3. Step 3: Cross multiply
    486,971.04x = 672,007.15 × 272,112.87
  4. Step 4: Simplify right side
    486,971.04x = 182,861,794,247.02
  5. Step 5: Solve for x
    x = 182,861,794,247.02/486,971.04
  6. Step 6: Final answer
    x = 375,508.56

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1.5x scale

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.