Home / 1,278,279.18-1,917,277.09-457,585.29

Finding the Fourth Proportional to 1,278,279.18, 1,917,277.09 and 457,585.29

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Solution

The fourth proportional to 1,278,279.18, 1,917,277.09 and 457,585.29 is: 686,327.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,279.18 : 1,917,277.09 = 457,585.29 : x
  2. Step 2: Convert to fraction form
    1,278,279.18/1,917,277.09 = 457,585.29/x
  3. Step 3: Cross multiply
    1,278,279.18x = 1,917,277.09 × 457,585.29
  4. Step 4: Simplify right side
    1,278,279.18x = 877,317,792,094.04
  5. Step 5: Solve for x
    x = 877,317,792,094.04/1,278,279.18
  6. Step 6: Final answer
    x = 686,327.22

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Double scale
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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.