Home / 843,394.68-1,164,034.50-499,421.55

Finding the Fourth Proportional to 843,394.68, 1,164,034.50 and 499,421.55

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Solution

The fourth proportional to 843,394.68, 1,164,034.50 and 499,421.55 is: 689,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,394.68 : 1,164,034.50 = 499,421.55 : x
  2. Step 2: Convert to fraction form
    843,394.68/1,164,034.50 = 499,421.55/x
  3. Step 3: Cross multiply
    843,394.68x = 1,164,034.50 × 499,421.55
  4. Step 4: Simplify right side
    843,394.68x = 581,343,914,243.48
  5. Step 5: Solve for x
    x = 581,343,914,243.48/843,394.68
  6. Step 6: Final answer
    x = 689,290.47

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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.