Home / 646,022.80-969,034.20-409,632.40

Finding the Fourth Proportional to 646,022.80, 969,034.20 and 409,632.40

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Solution

The fourth proportional to 646,022.80, 969,034.20 and 409,632.40 is: 614,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,022.80 : 969,034.20 = 409,632.40 : x
  2. Step 2: Convert to fraction form
    646,022.80/969,034.20 = 409,632.40/x
  3. Step 3: Cross multiply
    646,022.80x = 969,034.20 × 409,632.40
  4. Step 4: Simplify right side
    646,022.80x = 396,947,805,028.08
  5. Step 5: Solve for x
    x = 396,947,805,028.08/646,022.80
  6. Step 6: Final answer
    x = 614,448.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.