Home / 1,145,611.40-1,720,253.10-910,905.80

Finding the Fourth Proportional to 1,145,611.40, 1,720,253.10 and 910,905.80

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Solution

The fourth proportional to 1,145,611.40, 1,720,253.10 and 910,905.80 is: 1,367,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,611.40 : 1,720,253.10 = 910,905.80 : x
  2. Step 2: Convert to fraction form
    1,145,611.40/1,720,253.10 = 910,905.80/x
  3. Step 3: Cross multiply
    1,145,611.40x = 1,720,253.10 × 910,905.80
  4. Step 4: Simplify right side
    1,145,611.40x = 1,566,988,526,257.98
  5. Step 5: Solve for x
    x = 1,566,988,526,257.98/1,145,611.40
  6. Step 6: Final answer
    x = 1,367,818.55

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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.