Home / 683,428.80-1,025,143.20-650,769.60

Finding the Fourth Proportional to 683,428.80, 1,025,143.20 and 650,769.60

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Solution

The fourth proportional to 683,428.80, 1,025,143.20 and 650,769.60 is: 976,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,428.80 : 1,025,143.20 = 650,769.60 : x
  2. Step 2: Convert to fraction form
    683,428.80/1,025,143.20 = 650,769.60/x
  3. Step 3: Cross multiply
    683,428.80x = 1,025,143.20 × 650,769.60
  4. Step 4: Simplify right side
    683,428.80x = 667,132,030,206.72
  5. Step 5: Solve for x
    x = 667,132,030,206.72/683,428.80
  6. Step 6: Final answer
    x = 976,154.40

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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.