Home / 487,020.84-672,086.80-272,160.84

Finding the Fourth Proportional to 487,020.84, 672,086.80 and 272,160.84

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Solution

The fourth proportional to 487,020.84, 672,086.80 and 272,160.84 is: 375,580.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,020.84 : 672,086.80 = 272,160.84 : x
  2. Step 2: Convert to fraction form
    487,020.84/672,086.80 = 272,160.84/x
  3. Step 3: Cross multiply
    487,020.84x = 672,086.80 × 272,160.84
  4. Step 4: Simplify right side
    487,020.84x = 182,915,708,040.91
  5. Step 5: Solve for x
    x = 182,915,708,040.91/487,020.84
  6. Step 6: Final answer
    x = 375,580.86

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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.