Home / 913,532.38-1,370,390.64-314,414.80

Finding the Fourth Proportional to 913,532.38, 1,370,390.64 and 314,414.80

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Solution

The fourth proportional to 913,532.38, 1,370,390.64 and 314,414.80 is: 471,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,532.38 : 1,370,390.64 = 314,414.80 : x
  2. Step 2: Convert to fraction form
    913,532.38/1,370,390.64 = 314,414.80/x
  3. Step 3: Cross multiply
    913,532.38x = 1,370,390.64 × 314,414.80
  4. Step 4: Simplify right side
    913,532.38x = 430,871,098,997.47
  5. Step 5: Solve for x
    x = 430,871,098,997.47/913,532.38
  6. Step 6: Final answer
    x = 471,653.89

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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.