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Finding the Fourth Proportional to 669.98, 924.30 and 473.62

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Solution

The fourth proportional to 669.98, 924.30 and 473.62 is: 653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.98 : 924.30 = 473.62 : x
  2. Step 2: Convert to fraction form
    669.98/924.30 = 473.62/x
  3. Step 3: Cross multiply
    669.98x = 924.30 × 473.62
  4. Step 4: Simplify right side
    669.98x = 437,766.97
  5. Step 5: Solve for x
    x = 437,766.97/669.98
  6. Step 6: Final answer
    x = 653.40

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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.