Home / 1,340,999.20-2,011,498.80-442,579.60

Finding the Fourth Proportional to 1,340,999.20, 2,011,498.80 and 442,579.60

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Solution

The fourth proportional to 1,340,999.20, 2,011,498.80 and 442,579.60 is: 663,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,999.20 : 2,011,498.80 = 442,579.60 : x
  2. Step 2: Convert to fraction form
    1,340,999.20/2,011,498.80 = 442,579.60/x
  3. Step 3: Cross multiply
    1,340,999.20x = 2,011,498.80 × 442,579.60
  4. Step 4: Simplify right side
    1,340,999.20x = 890,248,334,304.48
  5. Step 5: Solve for x
    x = 890,248,334,304.48/1,340,999.20
  6. Step 6: Final answer
    x = 663,869.40

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Similar ratio
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1.5x scale

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.