Home / 1,231,087.20-1,842,429.60-1,031,632.80

Finding the Fourth Proportional to 1,231,087.20, 1,842,429.60 and 1,031,632.80

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Solution

The fourth proportional to 1,231,087.20, 1,842,429.60 and 1,031,632.80 is: 1,543,928.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,087.20 : 1,842,429.60 = 1,031,632.80 : x
  2. Step 2: Convert to fraction form
    1,231,087.20/1,842,429.60 = 1,031,632.80/x
  3. Step 3: Cross multiply
    1,231,087.20x = 1,842,429.60 × 1,031,632.80
  4. Step 4: Simplify right side
    1,231,087.20x = 1,900,710,807,050.88
  5. Step 5: Solve for x
    x = 1,900,710,807,050.88/1,231,087.20
  6. Step 6: Final answer
    x = 1,543,928.66

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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.