Home / 1,315,869.40-1,971,179.70-754,247.80

Finding the Fourth Proportional to 1,315,869.40, 1,971,179.70 and 754,247.80

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Solution

The fourth proportional to 1,315,869.40, 1,971,179.70 and 754,247.80 is: 1,129,867.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,869.40 : 1,971,179.70 = 754,247.80 : x
  2. Step 2: Convert to fraction form
    1,315,869.40/1,971,179.70 = 754,247.80/x
  3. Step 3: Cross multiply
    1,315,869.40x = 1,971,179.70 × 754,247.80
  4. Step 4: Simplify right side
    1,315,869.40x = 1,486,757,952,129.66
  5. Step 5: Solve for x
    x = 1,486,757,952,129.66/1,315,869.40
  6. Step 6: Final answer
    x = 1,129,867.41

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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.