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Finding the Fourth Proportional to 624.61, 941.12 and 558.28

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Solution

The fourth proportional to 624.61, 941.12 and 558.28 is: 841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.61 : 941.12 = 558.28 : x
  2. Step 2: Convert to fraction form
    624.61/941.12 = 558.28/x
  3. Step 3: Cross multiply
    624.61x = 941.12 × 558.28
  4. Step 4: Simplify right side
    624.61x = 525,403.77
  5. Step 5: Solve for x
    x = 525,403.77/624.61
  6. Step 6: Final answer
    x = 841.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.