Home / 486,875.10-671,875.23-272,016.78

Finding the Fourth Proportional to 486,875.10, 671,875.23 and 272,016.78

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Solution

The fourth proportional to 486,875.10, 671,875.23 and 272,016.78 is: 375,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,875.10 : 671,875.23 = 272,016.78 : x
  2. Step 2: Convert to fraction form
    486,875.10/671,875.23 = 272,016.78/x
  3. Step 3: Cross multiply
    486,875.10x = 671,875.23 × 272,016.78
  4. Step 4: Simplify right side
    486,875.10x = 182,761,336,626.36
  5. Step 5: Solve for x
    x = 182,761,336,626.36/486,875.10
  6. Step 6: Final answer
    x = 375,376.22

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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.