Home / 1,315,966.40-1,971,325.20-754,344.80

Finding the Fourth Proportional to 1,315,966.40, 1,971,325.20 and 754,344.80

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Solution

The fourth proportional to 1,315,966.40, 1,971,325.20 and 754,344.80 is: 1,130,012.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,966.40 : 1,971,325.20 = 754,344.80 : x
  2. Step 2: Convert to fraction form
    1,315,966.40/1,971,325.20 = 754,344.80/x
  3. Step 3: Cross multiply
    1,315,966.40x = 1,971,325.20 × 754,344.80
  4. Step 4: Simplify right side
    1,315,966.40x = 1,487,058,913,728.96
  5. Step 5: Solve for x
    x = 1,487,058,913,728.96/1,315,966.40
  6. Step 6: Final answer
    x = 1,130,012.83

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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.