Home / 675,077.80-1,012,616.70-638,336.20

Finding the Fourth Proportional to 675,077.80, 1,012,616.70 and 638,336.20

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Solution

The fourth proportional to 675,077.80, 1,012,616.70 and 638,336.20 is: 957,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,077.80 : 1,012,616.70 = 638,336.20 : x
  2. Step 2: Convert to fraction form
    675,077.80/1,012,616.70 = 638,336.20/x
  3. Step 3: Cross multiply
    675,077.80x = 1,012,616.70 × 638,336.20
  4. Step 4: Simplify right side
    675,077.80x = 646,389,896,334.54
  5. Step 5: Solve for x
    x = 646,389,896,334.54/675,077.80
  6. Step 6: Final answer
    x = 957,504.30

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Similar ratio
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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.