Home / 486,624.08-671,560.41-279,892.13

Finding the Fourth Proportional to 486,624.08, 671,560.41 and 279,892.13

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Solution

The fourth proportional to 486,624.08, 671,560.41 and 279,892.13 is: 386,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,624.08 : 671,560.41 = 279,892.13 : x
  2. Step 2: Convert to fraction form
    486,624.08/671,560.41 = 279,892.13/x
  3. Step 3: Cross multiply
    486,624.08x = 671,560.41 × 279,892.13
  4. Step 4: Simplify right side
    486,624.08x = 187,964,473,578.57
  5. Step 5: Solve for x
    x = 187,964,473,578.57/486,624.08
  6. Step 6: Final answer
    x = 386,262.17

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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.