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Finding the Fourth Proportional to 778,832.71, 1,074,790.13 and 434,668.62

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Solution

The fourth proportional to 778,832.71, 1,074,790.13 and 434,668.62 is: 599,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,832.71 : 1,074,790.13 = 434,668.62 : x
  2. Step 2: Convert to fraction form
    778,832.71/1,074,790.13 = 434,668.62/x
  3. Step 3: Cross multiply
    778,832.71x = 1,074,790.13 × 434,668.62
  4. Step 4: Simplify right side
    778,832.71x = 467,177,542,596.72
  5. Step 5: Solve for x
    x = 467,177,542,596.72/778,832.71
  6. Step 6: Final answer
    x = 599,843.25

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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.