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Finding the Fourth Proportional to 623.30, 932.51 and 520.02

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Solution

The fourth proportional to 623.30, 932.51 and 520.02 is: 778.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.30 : 932.51 = 520.02 : x
  2. Step 2: Convert to fraction form
    623.30/932.51 = 520.02/x
  3. Step 3: Cross multiply
    623.30x = 932.51 × 520.02
  4. Step 4: Simplify right side
    623.30x = 484,925.15
  5. Step 5: Solve for x
    x = 484,925.15/623.30
  6. Step 6: Final answer
    x = 778.00

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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.