Home / 843,391.68-1,164,030.35-499,418.56

Finding the Fourth Proportional to 843,391.68, 1,164,030.35 and 499,418.56

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Solution

The fourth proportional to 843,391.68, 1,164,030.35 and 499,418.56 is: 689,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,391.68 : 1,164,030.35 = 499,418.56 : x
  2. Step 2: Convert to fraction form
    843,391.68/1,164,030.35 = 499,418.56/x
  3. Step 3: Cross multiply
    843,391.68x = 1,164,030.35 × 499,418.56
  4. Step 4: Simplify right side
    843,391.68x = 581,338,360,151.24
  5. Step 5: Solve for x
    x = 581,338,360,151.24/843,391.68
  6. Step 6: Final answer
    x = 689,286.34

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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.