Home / 917,572.43-1,376,372.49-318,552.64

Finding the Fourth Proportional to 917,572.43, 1,376,372.49 and 318,552.64

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Solution

The fourth proportional to 917,572.43, 1,376,372.49 and 318,552.64 is: 477,833.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,572.43 : 1,376,372.49 = 318,552.64 : x
  2. Step 2: Convert to fraction form
    917,572.43/1,376,372.49 = 318,552.64/x
  3. Step 3: Cross multiply
    917,572.43x = 1,376,372.49 × 318,552.64
  4. Step 4: Simplify right side
    917,572.43x = 438,447,083,431.01
  5. Step 5: Solve for x
    x = 438,447,083,431.01/917,572.43
  6. Step 6: Final answer
    x = 477,833.76

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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.