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Finding the Fourth Proportional to 561.87, 844.13 and 530.79

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Solution

The fourth proportional to 561.87, 844.13 and 530.79 is: 797.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.87 : 844.13 = 530.79 : x
  2. Step 2: Convert to fraction form
    561.87/844.13 = 530.79/x
  3. Step 3: Cross multiply
    561.87x = 844.13 × 530.79
  4. Step 4: Simplify right side
    561.87x = 448,055.76
  5. Step 5: Solve for x
    x = 448,055.76/561.87
  6. Step 6: Final answer
    x = 797.44

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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.