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Finding the Fourth Proportional to 654.26, 900.56 and 560.91

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Solution

The fourth proportional to 654.26, 900.56 and 560.91 is: 772.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.26 : 900.56 = 560.91 : x
  2. Step 2: Convert to fraction form
    654.26/900.56 = 560.91/x
  3. Step 3: Cross multiply
    654.26x = 900.56 × 560.91
  4. Step 4: Simplify right side
    654.26x = 505,130.31
  5. Step 5: Solve for x
    x = 505,130.31/654.26
  6. Step 6: Final answer
    x = 772.07

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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.