Home / 813,986.13-1,215,050.76-753,952.98

Finding the Fourth Proportional to 813,986.13, 1,215,050.76 and 753,952.98

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Solution

The fourth proportional to 813,986.13, 1,215,050.76 and 753,952.98 is: 1,125,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,986.13 : 1,215,050.76 = 753,952.98 : x
  2. Step 2: Convert to fraction form
    813,986.13/1,215,050.76 = 753,952.98/x
  3. Step 3: Cross multiply
    813,986.13x = 1,215,050.76 × 753,952.98
  4. Step 4: Simplify right side
    813,986.13x = 916,091,141,353.27
  5. Step 5: Solve for x
    x = 916,091,141,353.27/813,986.13
  6. Step 6: Final answer
    x = 1,125,438.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.