Home / 1,989,275.18-2,981,403.72-850,691.39

Finding the Fourth Proportional to 1,989,275.18, 2,981,403.72 and 850,691.39

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Solution

The fourth proportional to 1,989,275.18, 2,981,403.72 and 850,691.39 is: 1,274,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,275.18 : 2,981,403.72 = 850,691.39 : x
  2. Step 2: Convert to fraction form
    1,989,275.18/2,981,403.72 = 850,691.39/x
  3. Step 3: Cross multiply
    1,989,275.18x = 2,981,403.72 × 850,691.39
  4. Step 4: Simplify right side
    1,989,275.18x = 2,536,254,459,810.95
  5. Step 5: Solve for x
    x = 2,536,254,459,810.95/1,989,275.18
  6. Step 6: Final answer
    x = 1,274,964.11

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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.