Home / 1,752,632.20-2,629,985.10-1,278,123.40

Finding the Fourth Proportional to 1,752,632.20, 2,629,985.10 and 1,278,123.40

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Solution

The fourth proportional to 1,752,632.20, 2,629,985.10 and 1,278,123.40 is: 1,917,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752,632.20 : 2,629,985.10 = 1,278,123.40 : x
  2. Step 2: Convert to fraction form
    1,752,632.20/2,629,985.10 = 1,278,123.40/x
  3. Step 3: Cross multiply
    1,752,632.20x = 2,629,985.10 × 1,278,123.40
  4. Step 4: Simplify right side
    1,752,632.20x = 3,361,445,497,961.34
  5. Step 5: Solve for x
    x = 3,361,445,497,961.34/1,752,632.20
  6. Step 6: Final answer
    x = 1,917,941.20

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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.