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Finding the Fourth Proportional to 667,353.92, 920,948.80 and 365,552.96

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Solution

The fourth proportional to 667,353.92, 920,948.80 and 365,552.96 is: 504,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,353.92 : 920,948.80 = 365,552.96 : x
  2. Step 2: Convert to fraction form
    667,353.92/920,948.80 = 365,552.96/x
  3. Step 3: Cross multiply
    667,353.92x = 920,948.80 × 365,552.96
  4. Step 4: Simplify right side
    667,353.92x = 336,655,559,848.45
  5. Step 5: Solve for x
    x = 336,655,559,848.45/667,353.92
  6. Step 6: Final answer
    x = 504,463.30

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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.