Home / 1,278,970.60-1,920,011.10-960,932.20

Finding the Fourth Proportional to 1,278,970.60, 1,920,011.10 and 960,932.20

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Solution

The fourth proportional to 1,278,970.60, 1,920,011.10 and 960,932.20 is: 1,442,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,970.60 : 1,920,011.10 = 960,932.20 : x
  2. Step 2: Convert to fraction form
    1,278,970.60/1,920,011.10 = 960,932.20/x
  3. Step 3: Cross multiply
    1,278,970.60x = 1,920,011.10 × 960,932.20
  4. Step 4: Simplify right side
    1,278,970.60x = 1,845,000,490,347.42
  5. Step 5: Solve for x
    x = 1,845,000,490,347.42/1,278,970.60
  6. Step 6: Final answer
    x = 1,442,566.77

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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.