Home / 683,345.80-1,025,018.70-646,604.20

Finding the Fourth Proportional to 683,345.80, 1,025,018.70 and 646,604.20

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Solution

The fourth proportional to 683,345.80, 1,025,018.70 and 646,604.20 is: 969,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,345.80 : 1,025,018.70 = 646,604.20 : x
  2. Step 2: Convert to fraction form
    683,345.80/1,025,018.70 = 646,604.20/x
  3. Step 3: Cross multiply
    683,345.80x = 1,025,018.70 × 646,604.20
  4. Step 4: Simplify right side
    683,345.80x = 662,781,396,498.54
  5. Step 5: Solve for x
    x = 662,781,396,498.54/683,345.80
  6. Step 6: Final answer
    x = 969,906.30

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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.