Home / 784,870.85-1,177,306.28-728,883.65

Finding the Fourth Proportional to 784,870.85, 1,177,306.28 and 728,883.65

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Solution

The fourth proportional to 784,870.85, 1,177,306.28 and 728,883.65 is: 1,093,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,870.85 : 1,177,306.28 = 728,883.65 : x
  2. Step 2: Convert to fraction form
    784,870.85/1,177,306.28 = 728,883.65/x
  3. Step 3: Cross multiply
    784,870.85x = 1,177,306.28 × 728,883.65
  4. Step 4: Simplify right side
    784,870.85x = 858,119,294,889.90
  5. Step 5: Solve for x
    x = 858,119,294,889.90/784,870.85
  6. Step 6: Final answer
    x = 1,093,325.48

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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.