Home / 862,156.12-1,190,937.18-781,674.52

Finding the Fourth Proportional to 862,156.12, 1,190,937.18 and 781,674.52

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Solution

The fourth proportional to 862,156.12, 1,190,937.18 and 781,674.52 is: 1,079,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,156.12 : 1,190,937.18 = 781,674.52 : x
  2. Step 2: Convert to fraction form
    862,156.12/1,190,937.18 = 781,674.52/x
  3. Step 3: Cross multiply
    862,156.12x = 1,190,937.18 × 781,674.52
  4. Step 4: Simplify right side
    862,156.12x = 930,925,248,526.65
  5. Step 5: Solve for x
    x = 930,925,248,526.65/862,156.12
  6. Step 6: Final answer
    x = 1,079,764.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.