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Finding the Fourth Proportional to 700.47, 966.84 and 561.55

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Solution

The fourth proportional to 700.47, 966.84 and 561.55 is: 775.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.47 : 966.84 = 561.55 : x
  2. Step 2: Convert to fraction form
    700.47/966.84 = 561.55/x
  3. Step 3: Cross multiply
    700.47x = 966.84 × 561.55
  4. Step 4: Simplify right side
    700.47x = 542,929.00
  5. Step 5: Solve for x
    x = 542,929.00/700.47
  6. Step 6: Final answer
    x = 775.09

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1.5x scale

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.