Home / 1,311,687.72-1,810,964.79-1,070,545.46

Finding the Fourth Proportional to 1,311,687.72, 1,810,964.79 and 1,070,545.46

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Solution

The fourth proportional to 1,311,687.72, 1,810,964.79 and 1,070,545.46 is: 1,478,034.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,687.72 : 1,810,964.79 = 1,070,545.46 : x
  2. Step 2: Convert to fraction form
    1,311,687.72/1,810,964.79 = 1,070,545.46/x
  3. Step 3: Cross multiply
    1,311,687.72x = 1,810,964.79 × 1,070,545.46
  4. Step 4: Simplify right side
    1,311,687.72x = 1,938,720,125,099.53
  5. Step 5: Solve for x
    x = 1,938,720,125,099.53/1,311,687.72
  6. Step 6: Final answer
    x = 1,478,034.82

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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.