Home / 1,240,857.60-1,861,290.72-492,901.44

Finding the Fourth Proportional to 1,240,857.60, 1,861,290.72 and 492,901.44

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Solution

The fourth proportional to 1,240,857.60, 1,861,290.72 and 492,901.44 is: 739,353.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,857.60 : 1,861,290.72 = 492,901.44 : x
  2. Step 2: Convert to fraction form
    1,240,857.60/1,861,290.72 = 492,901.44/x
  3. Step 3: Cross multiply
    1,240,857.60x = 1,861,290.72 × 492,901.44
  4. Step 4: Simplify right side
    1,240,857.60x = 917,432,876,146.64
  5. Step 5: Solve for x
    x = 917,432,876,146.64/1,240,857.60
  6. Step 6: Final answer
    x = 739,353.88

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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.