Home / 1,347,112.27-1,859,014.93-918,141.78

Finding the Fourth Proportional to 1,347,112.27, 1,859,014.93 and 918,141.78

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Solution

The fourth proportional to 1,347,112.27, 1,859,014.93 and 918,141.78 is: 1,267,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,112.27 : 1,859,014.93 = 918,141.78 : x
  2. Step 2: Convert to fraction form
    1,347,112.27/1,859,014.93 = 918,141.78/x
  3. Step 3: Cross multiply
    1,347,112.27x = 1,859,014.93 × 918,141.78
  4. Step 4: Simplify right side
    1,347,112.27x = 1,706,839,280,691.97
  5. Step 5: Solve for x
    x = 1,706,839,280,691.97/1,347,112.27
  6. Step 6: Final answer
    x = 1,267,035.66

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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.