Home / 767,753.34-1,151,136.72-318,784.20

Finding the Fourth Proportional to 767,753.34, 1,151,136.72 and 318,784.20

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Solution

The fourth proportional to 767,753.34, 1,151,136.72 and 318,784.20 is: 477,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,753.34 : 1,151,136.72 = 318,784.20 : x
  2. Step 2: Convert to fraction form
    767,753.34/1,151,136.72 = 318,784.20/x
  3. Step 3: Cross multiply
    767,753.34x = 1,151,136.72 × 318,784.20
  4. Step 4: Simplify right side
    767,753.34x = 366,964,198,375.82
  5. Step 5: Solve for x
    x = 366,964,198,375.82/767,753.34
  6. Step 6: Final answer
    x = 477,971.48

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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.