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Finding the Fourth Proportional to 954.24, 1,316.82 and 555.92

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Solution

The fourth proportional to 954.24, 1,316.82 and 555.92 is: 767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.24 : 1,316.82 = 555.92 : x
  2. Step 2: Convert to fraction form
    954.24/1,316.82 = 555.92/x
  3. Step 3: Cross multiply
    954.24x = 1,316.82 × 555.92
  4. Step 4: Simplify right side
    954.24x = 732,038.62
  5. Step 5: Solve for x
    x = 732,038.62/954.24
  6. Step 6: Final answer
    x = 767.14

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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.