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Finding the Fourth Proportional to 667,730.28, 921,464.56 and 365,924.28

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Solution

The fourth proportional to 667,730.28, 921,464.56 and 365,924.28 is: 504,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,730.28 : 921,464.56 = 365,924.28 : x
  2. Step 2: Convert to fraction form
    667,730.28/921,464.56 = 365,924.28/x
  3. Step 3: Cross multiply
    667,730.28x = 921,464.56 × 365,924.28
  4. Step 4: Simplify right side
    667,730.28x = 337,186,255,663.52
  5. Step 5: Solve for x
    x = 337,186,255,663.52/667,730.28
  6. Step 6: Final answer
    x = 504,973.74

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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.