Home / 727,760.30-1,091,640.45-412,832.30

Finding the Fourth Proportional to 727,760.30, 1,091,640.45 and 412,832.30

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Solution

The fourth proportional to 727,760.30, 1,091,640.45 and 412,832.30 is: 619,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,760.30 : 1,091,640.45 = 412,832.30 : x
  2. Step 2: Convert to fraction form
    727,760.30/1,091,640.45 = 412,832.30/x
  3. Step 3: Cross multiply
    727,760.30x = 1,091,640.45 × 412,832.30
  4. Step 4: Simplify right side
    727,760.30x = 450,664,437,746.54
  5. Step 5: Solve for x
    x = 450,664,437,746.54/727,760.30
  6. Step 6: Final answer
    x = 619,248.45

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1.5x scale

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.