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Finding the Fourth Proportional to 667,700.88, 921,427.56 and 365,894.88

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Solution

The fourth proportional to 667,700.88, 921,427.56 and 365,894.88 is: 504,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,700.88 : 921,427.56 = 365,894.88 : x
  2. Step 2: Convert to fraction form
    667,700.88/921,427.56 = 365,894.88/x
  3. Step 3: Cross multiply
    667,700.88x = 921,427.56 × 365,894.88
  4. Step 4: Simplify right side
    667,700.88x = 337,145,626,494.89
  5. Step 5: Solve for x
    x = 337,145,626,494.89/667,700.88
  6. Step 6: Final answer
    x = 504,935.12

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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.