Home / 485,881.29-670,546.23-268,088.91

Finding the Fourth Proportional to 485,881.29, 670,546.23 and 268,088.91

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Solution

The fourth proportional to 485,881.29, 670,546.23 and 268,088.91 is: 369,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,881.29 : 670,546.23 = 268,088.91 : x
  2. Step 2: Convert to fraction form
    485,881.29/670,546.23 = 268,088.91/x
  3. Step 3: Cross multiply
    485,881.29x = 670,546.23 × 268,088.91
  4. Step 4: Simplify right side
    485,881.29x = 179,766,007,905.31
  5. Step 5: Solve for x
    x = 179,766,007,905.31/485,881.29
  6. Step 6: Final answer
    x = 369,979.28

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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.