Home / 778,405.14-1,074,205.40-434,229.66

Finding the Fourth Proportional to 778,405.14, 1,074,205.40 and 434,229.66

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Solution

The fourth proportional to 778,405.14, 1,074,205.40 and 434,229.66 is: 599,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,405.14 : 1,074,205.40 = 434,229.66 : x
  2. Step 2: Convert to fraction form
    778,405.14/1,074,205.40 = 434,229.66/x
  3. Step 3: Cross multiply
    778,405.14x = 1,074,205.40 × 434,229.66
  4. Step 4: Simplify right side
    778,405.14x = 466,451,843,441.02
  5. Step 5: Solve for x
    x = 466,451,843,441.02/778,405.14
  6. Step 6: Final answer
    x = 599,240.45

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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.