Home / 913,916.64-1,370,611.92-314,853.60

Finding the Fourth Proportional to 913,916.64, 1,370,611.92 and 314,853.60

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Solution

The fourth proportional to 913,916.64, 1,370,611.92 and 314,853.60 is: 472,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,916.64 : 1,370,611.92 = 314,853.60 : x
  2. Step 2: Convert to fraction form
    913,916.64/1,370,611.92 = 314,853.60/x
  3. Step 3: Cross multiply
    913,916.64x = 1,370,611.92 × 314,853.60
  4. Step 4: Simplify right side
    913,916.64x = 431,542,097,214.91
  5. Step 5: Solve for x
    x = 431,542,097,214.91/913,916.64
  6. Step 6: Final answer
    x = 472,189.78

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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.