Home / 766,479.87-1,057,743.27-417,618.54

Finding the Fourth Proportional to 766,479.87, 1,057,743.27 and 417,618.54

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Solution

The fourth proportional to 766,479.87, 1,057,743.27 and 417,618.54 is: 576,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,479.87 : 1,057,743.27 = 417,618.54 : x
  2. Step 2: Convert to fraction form
    766,479.87/1,057,743.27 = 417,618.54/x
  3. Step 3: Cross multiply
    766,479.87x = 1,057,743.27 × 417,618.54
  4. Step 4: Simplify right side
    766,479.87x = 441,733,200,112.23
  5. Step 5: Solve for x
    x = 441,733,200,112.23/766,479.87
  6. Step 6: Final answer
    x = 576,314.16

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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.