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Finding the Fourth Proportional to 768,065.04, 1,151,959.08 and 206,968.56

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Solution

The fourth proportional to 768,065.04, 1,151,959.08 and 206,968.56 is: 310,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,065.04 : 1,151,959.08 = 206,968.56 : x
  2. Step 2: Convert to fraction form
    768,065.04/1,151,959.08 = 206,968.56/x
  3. Step 3: Cross multiply
    768,065.04x = 1,151,959.08 × 206,968.56
  4. Step 4: Simplify right side
    768,065.04x = 238,419,311,966.53
  5. Step 5: Solve for x
    x = 238,419,311,966.53/768,065.04
  6. Step 6: Final answer
    x = 310,415.52

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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.