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Finding the Fourth Proportional to 670.95, 924.18 and 474.12

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Solution

The fourth proportional to 670.95, 924.18 and 474.12 is: 653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.95 : 924.18 = 474.12 : x
  2. Step 2: Convert to fraction form
    670.95/924.18 = 474.12/x
  3. Step 3: Cross multiply
    670.95x = 924.18 × 474.12
  4. Step 4: Simplify right side
    670.95x = 438,169.85
  5. Step 5: Solve for x
    x = 438,169.85/670.95
  6. Step 6: Final answer
    x = 653.06

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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.