Home / 1,027,406.95-1,540,861.14-428,041.10

Finding the Fourth Proportional to 1,027,406.95, 1,540,861.14 and 428,041.10

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Solution

The fourth proportional to 1,027,406.95, 1,540,861.14 and 428,041.10 is: 641,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,406.95 : 1,540,861.14 = 428,041.10 : x
  2. Step 2: Convert to fraction form
    1,027,406.95/1,540,861.14 = 428,041.10/x
  3. Step 3: Cross multiply
    1,027,406.95x = 1,540,861.14 × 428,041.10
  4. Step 4: Simplify right side
    1,027,406.95x = 659,551,897,312.85
  5. Step 5: Solve for x
    x = 659,551,897,312.85/1,027,406.95
  6. Step 6: Final answer
    x = 641,957.79

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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.