Home / 775,331.71-1,069,875.87-431,112.12

Finding the Fourth Proportional to 775,331.71, 1,069,875.87 and 431,112.12

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Solution

The fourth proportional to 775,331.71, 1,069,875.87 and 431,112.12 is: 594,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,331.71 : 1,069,875.87 = 431,112.12 : x
  2. Step 2: Convert to fraction form
    775,331.71/1,069,875.87 = 431,112.12/x
  3. Step 3: Cross multiply
    775,331.71x = 1,069,875.87 × 431,112.12
  4. Step 4: Simplify right side
    775,331.71x = 461,236,454,452.54
  5. Step 5: Solve for x
    x = 461,236,454,452.54/775,331.71
  6. Step 6: Final answer
    x = 594,889.19

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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.