Home / 690,392.08-1,035,729.30-291,032.92

Finding the Fourth Proportional to 690,392.08, 1,035,729.30 and 291,032.92

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Solution

The fourth proportional to 690,392.08, 1,035,729.30 and 291,032.92 is: 436,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,392.08 : 1,035,729.30 = 291,032.92 : x
  2. Step 2: Convert to fraction form
    690,392.08/1,035,729.30 = 291,032.92/x
  3. Step 3: Cross multiply
    690,392.08x = 1,035,729.30 × 291,032.92
  4. Step 4: Simplify right side
    690,392.08x = 301,431,322,508.56
  5. Step 5: Solve for x
    x = 301,431,322,508.56/690,392.08
  6. Step 6: Final answer
    x = 436,608.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.