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Finding the Fourth Proportional to 1,024.57, 1,534.41 and 561.67

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Solution

The fourth proportional to 1,024.57, 1,534.41 and 561.67 is: 841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.57 : 1,534.41 = 561.67 : x
  2. Step 2: Convert to fraction form
    1,024.57/1,534.41 = 561.67/x
  3. Step 3: Cross multiply
    1,024.57x = 1,534.41 × 561.67
  4. Step 4: Simplify right side
    1,024.57x = 861,832.06
  5. Step 5: Solve for x
    x = 861,832.06/1,024.57
  6. Step 6: Final answer
    x = 841.16

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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.