Home / 1,380,461.64-2,068,947.72-621,494.88

Finding the Fourth Proportional to 1,380,461.64, 2,068,947.72 and 621,494.88

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Solution

The fourth proportional to 1,380,461.64, 2,068,947.72 and 621,494.88 is: 931,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,461.64 : 2,068,947.72 = 621,494.88 : x
  2. Step 2: Convert to fraction form
    1,380,461.64/2,068,947.72 = 621,494.88/x
  3. Step 3: Cross multiply
    1,380,461.64x = 2,068,947.72 × 621,494.88
  4. Step 4: Simplify right side
    1,380,461.64x = 1,285,840,414,967.67
  5. Step 5: Solve for x
    x = 1,285,840,414,967.67/1,380,461.64
  6. Step 6: Final answer
    x = 931,456.82

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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.