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Finding the Fourth Proportional to 925.71, 1,277.50 and 506.08

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Solution

The fourth proportional to 925.71, 1,277.50 and 506.08 is: 698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.71 : 1,277.50 = 506.08 : x
  2. Step 2: Convert to fraction form
    925.71/1,277.50 = 506.08/x
  3. Step 3: Cross multiply
    925.71x = 1,277.50 × 506.08
  4. Step 4: Simplify right side
    925.71x = 646,512.74
  5. Step 5: Solve for x
    x = 646,512.74/925.71
  6. Step 6: Final answer
    x = 698.40

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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.