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Finding the Fourth Proportional to 888.39, 1,224.30 and 770.01

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Solution

The fourth proportional to 888.39, 1,224.30 and 770.01 is: 1,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.39 : 1,224.30 = 770.01 : x
  2. Step 2: Convert to fraction form
    888.39/1,224.30 = 770.01/x
  3. Step 3: Cross multiply
    888.39x = 1,224.30 × 770.01
  4. Step 4: Simplify right side
    888.39x = 942,723.24
  5. Step 5: Solve for x
    x = 942,723.24/888.39
  6. Step 6: Final answer
    x = 1,061.16

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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.