Home / 1,391,475.20-2,087,225.60-727,923.20

Finding the Fourth Proportional to 1,391,475.20, 2,087,225.60 and 727,923.20

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Solution

The fourth proportional to 1,391,475.20, 2,087,225.60 and 727,923.20 is: 1,091,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,475.20 : 2,087,225.60 = 727,923.20 : x
  2. Step 2: Convert to fraction form
    1,391,475.20/2,087,225.60 = 727,923.20/x
  3. Step 3: Cross multiply
    1,391,475.20x = 2,087,225.60 × 727,923.20
  4. Step 4: Simplify right side
    1,391,475.20x = 1,519,339,937,873.92
  5. Step 5: Solve for x
    x = 1,519,339,937,873.92/1,391,475.20
  6. Step 6: Final answer
    x = 1,091,891.50

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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.