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Finding the Fourth Proportional to 417,498.09, 626,288.13 and 117,980.97

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Solution

The fourth proportional to 417,498.09, 626,288.13 and 117,980.97 is: 176,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,498.09 : 626,288.13 = 117,980.97 : x
  2. Step 2: Convert to fraction form
    417,498.09/626,288.13 = 117,980.97/x
  3. Step 3: Cross multiply
    417,498.09x = 626,288.13 × 117,980.97
  4. Step 4: Simplify right side
    417,498.09x = 73,890,081,076.89
  5. Step 5: Solve for x
    x = 73,890,081,076.89/417,498.09
  6. Step 6: Final answer
    x = 176,983.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.