Home / 1,278,068.10-1,917,102.15-1,088,090.70

Finding the Fourth Proportional to 1,278,068.10, 1,917,102.15 and 1,088,090.70

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Solution

The fourth proportional to 1,278,068.10, 1,917,102.15 and 1,088,090.70 is: 1,632,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,068.10 : 1,917,102.15 = 1,088,090.70 : x
  2. Step 2: Convert to fraction form
    1,278,068.10/1,917,102.15 = 1,088,090.70/x
  3. Step 3: Cross multiply
    1,278,068.10x = 1,917,102.15 × 1,088,090.70
  4. Step 4: Simplify right side
    1,278,068.10x = 2,085,981,020,365.01
  5. Step 5: Solve for x
    x = 2,085,981,020,365.01/1,278,068.10
  6. Step 6: Final answer
    x = 1,632,136.05

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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.