Home / 1,217,959.32-1,680,940.90-734,785.42

Finding the Fourth Proportional to 1,217,959.32, 1,680,940.90 and 734,785.42

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Solution

The fourth proportional to 1,217,959.32, 1,680,940.90 and 734,785.42 is: 1,014,098.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,959.32 : 1,680,940.90 = 734,785.42 : x
  2. Step 2: Convert to fraction form
    1,217,959.32/1,680,940.90 = 734,785.42/x
  3. Step 3: Cross multiply
    1,217,959.32x = 1,680,940.90 × 734,785.42
  4. Step 4: Simplify right side
    1,217,959.32x = 1,235,130,865,201.68
  5. Step 5: Solve for x
    x = 1,235,130,865,201.68/1,217,959.32
  6. Step 6: Final answer
    x = 1,014,098.62

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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.