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Finding the Fourth Proportional to 560.56, 841.44 and 440.16

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Solution

The fourth proportional to 560.56, 841.44 and 440.16 is: 660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.56 : 841.44 = 440.16 : x
  2. Step 2: Convert to fraction form
    560.56/841.44 = 440.16/x
  3. Step 3: Cross multiply
    560.56x = 841.44 × 440.16
  4. Step 4: Simplify right side
    560.56x = 370,368.23
  5. Step 5: Solve for x
    x = 370,368.23/560.56
  6. Step 6: Final answer
    x = 660.71

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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.