Home / 486,984.89-672,026.63-272,126.72

Finding the Fourth Proportional to 486,984.89, 672,026.63 and 272,126.72

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Solution

The fourth proportional to 486,984.89, 672,026.63 and 272,126.72 is: 375,527.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,984.89 : 672,026.63 = 272,126.72 : x
  2. Step 2: Convert to fraction form
    486,984.89/672,026.63 = 272,126.72/x
  3. Step 3: Cross multiply
    486,984.89x = 672,026.63 × 272,126.72
  4. Step 4: Simplify right side
    486,984.89x = 182,876,397,853.79
  5. Step 5: Solve for x
    x = 182,876,397,853.79/486,984.89
  6. Step 6: Final answer
    x = 375,527.87

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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.