Home / 683,428.80-1,025,143.20-633,662.40

Finding the Fourth Proportional to 683,428.80, 1,025,143.20 and 633,662.40

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Solution

The fourth proportional to 683,428.80, 1,025,143.20 and 633,662.40 is: 950,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,428.80 : 1,025,143.20 = 633,662.40 : x
  2. Step 2: Convert to fraction form
    683,428.80/1,025,143.20 = 633,662.40/x
  3. Step 3: Cross multiply
    683,428.80x = 1,025,143.20 × 633,662.40
  4. Step 4: Simplify right side
    683,428.80x = 649,594,700,455.68
  5. Step 5: Solve for x
    x = 649,594,700,455.68/683,428.80
  6. Step 6: Final answer
    x = 950,493.60

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Double scale
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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.