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Finding the Fourth Proportional to 568,034.81, 783,957.42 and 326,316.87

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Solution

The fourth proportional to 568,034.81, 783,957.42 and 326,316.87 is: 450,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,034.81 : 783,957.42 = 326,316.87 : x
  2. Step 2: Convert to fraction form
    568,034.81/783,957.42 = 326,316.87/x
  3. Step 3: Cross multiply
    568,034.81x = 783,957.42 × 326,316.87
  4. Step 4: Simplify right side
    568,034.81x = 255,818,531,507.68
  5. Step 5: Solve for x
    x = 255,818,531,507.68/568,034.81
  6. Step 6: Final answer
    x = 450,357.14

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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.