Home / 1,377,179.60-2,065,770.84-430,555.28

Finding the Fourth Proportional to 1,377,179.60, 2,065,770.84 and 430,555.28

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Solution

The fourth proportional to 1,377,179.60, 2,065,770.84 and 430,555.28 is: 645,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,179.60 : 2,065,770.84 = 430,555.28 : x
  2. Step 2: Convert to fraction form
    1,377,179.60/2,065,770.84 = 430,555.28/x
  3. Step 3: Cross multiply
    1,377,179.60x = 2,065,770.84 × 430,555.28
  4. Step 4: Simplify right side
    1,377,179.60x = 889,428,542,432.04
  5. Step 5: Solve for x
    x = 889,428,542,432.04/1,377,179.60
  6. Step 6: Final answer
    x = 645,833.37

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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.