Home / 781,051.74-1,077,806.07-432,171.78

Finding the Fourth Proportional to 781,051.74, 1,077,806.07 and 432,171.78

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Solution

The fourth proportional to 781,051.74, 1,077,806.07 and 432,171.78 is: 596,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,051.74 : 1,077,806.07 = 432,171.78 : x
  2. Step 2: Convert to fraction form
    781,051.74/1,077,806.07 = 432,171.78/x
  3. Step 3: Cross multiply
    781,051.74x = 1,077,806.07 × 432,171.78
  4. Step 4: Simplify right side
    781,051.74x = 465,797,367,766.71
  5. Step 5: Solve for x
    x = 465,797,367,766.71/781,051.74
  6. Step 6: Final answer
    x = 596,371.97

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1.5x scale

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.