Home / 1,315,904.40-1,971,232.20-754,282.80

Finding the Fourth Proportional to 1,315,904.40, 1,971,232.20 and 754,282.80

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Solution

The fourth proportional to 1,315,904.40, 1,971,232.20 and 754,282.80 is: 1,129,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,904.40 : 1,971,232.20 = 754,282.80 : x
  2. Step 2: Convert to fraction form
    1,315,904.40/1,971,232.20 = 754,282.80/x
  3. Step 3: Cross multiply
    1,315,904.40x = 1,971,232.20 × 754,282.80
  4. Step 4: Simplify right side
    1,315,904.40x = 1,486,866,543,266.16
  5. Step 5: Solve for x
    x = 1,486,866,543,266.16/1,315,904.40
  6. Step 6: Final answer
    x = 1,129,919.88

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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.