Home / 879,357.32-1,318,614.64-429,551.56

Finding the Fourth Proportional to 879,357.32, 1,318,614.64 and 429,551.56

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Solution

The fourth proportional to 879,357.32, 1,318,614.64 and 429,551.56 is: 644,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,357.32 : 1,318,614.64 = 429,551.56 : x
  2. Step 2: Convert to fraction form
    879,357.32/1,318,614.64 = 429,551.56/x
  3. Step 3: Cross multiply
    879,357.32x = 1,318,614.64 × 429,551.56
  4. Step 4: Simplify right side
    879,357.32x = 566,412,982,350.06
  5. Step 5: Solve for x
    x = 566,412,982,350.06/879,357.32
  6. Step 6: Final answer
    x = 644,121.53

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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.