Home / 767,747.34-1,151,127.72-318,778.20

Finding the Fourth Proportional to 767,747.34, 1,151,127.72 and 318,778.20

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Solution

The fourth proportional to 767,747.34, 1,151,127.72 and 318,778.20 is: 477,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,747.34 : 1,151,127.72 = 318,778.20 : x
  2. Step 2: Convert to fraction form
    767,747.34/1,151,127.72 = 318,778.20/x
  3. Step 3: Cross multiply
    767,747.34x = 1,151,127.72 × 318,778.20
  4. Step 4: Simplify right side
    767,747.34x = 366,954,422,551.70
  5. Step 5: Solve for x
    x = 366,954,422,551.70/767,747.34
  6. Step 6: Final answer
    x = 477,962.48

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1.5x scale

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.