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Finding the Fourth Proportional to 529.04, 790.30 and 502.40

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Solution

The fourth proportional to 529.04, 790.30 and 502.40 is: 750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.04 : 790.30 = 502.40 : x
  2. Step 2: Convert to fraction form
    529.04/790.30 = 502.40/x
  3. Step 3: Cross multiply
    529.04x = 790.30 × 502.40
  4. Step 4: Simplify right side
    529.04x = 397,046.72
  5. Step 5: Solve for x
    x = 397,046.72/529.04
  6. Step 6: Final answer
    x = 750.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.