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Finding the Fourth Proportional to 527.02, 790.78 and 373.92

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Solution

The fourth proportional to 527.02, 790.78 and 373.92 is: 561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.02 : 790.78 = 373.92 : x
  2. Step 2: Convert to fraction form
    527.02/790.78 = 373.92/x
  3. Step 3: Cross multiply
    527.02x = 790.78 × 373.92
  4. Step 4: Simplify right side
    527.02x = 295,688.46
  5. Step 5: Solve for x
    x = 295,688.46/527.02
  6. Step 6: Final answer
    x = 561.06

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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.