Home / 1,263,266.40-1,743,312-690,306.60

Finding the Fourth Proportional to 1,263,266.40, 1,743,312 and 690,306.60

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Solution

The fourth proportional to 1,263,266.40, 1,743,312 and 690,306.60 is: 952,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,266.40 : 1,743,312 = 690,306.60 : x
  2. Step 2: Convert to fraction form
    1,263,266.40/1,743,312 = 690,306.60/x
  3. Step 3: Cross multiply
    1,263,266.40x = 1,743,312 × 690,306.60
  4. Step 4: Simplify right side
    1,263,266.40x = 1,203,419,779,459.20
  5. Step 5: Solve for x
    x = 1,203,419,779,459.20/1,263,266.40
  6. Step 6: Final answer
    x = 952,625.49

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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.