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Finding the Fourth Proportional to 670.80, 924.54 and 504.72

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Solution

The fourth proportional to 670.80, 924.54 and 504.72 is: 695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.80 : 924.54 = 504.72 : x
  2. Step 2: Convert to fraction form
    670.80/924.54 = 504.72/x
  3. Step 3: Cross multiply
    670.80x = 924.54 × 504.72
  4. Step 4: Simplify right side
    670.80x = 466,633.83
  5. Step 5: Solve for x
    x = 466,633.83/670.80
  6. Step 6: Final answer
    x = 695.64

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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.