Home / 683,140.80-1,024,711.20-209,825.40

Finding the Fourth Proportional to 683,140.80, 1,024,711.20 and 209,825.40

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Solution

The fourth proportional to 683,140.80, 1,024,711.20 and 209,825.40 is: 314,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,140.80 : 1,024,711.20 = 209,825.40 : x
  2. Step 2: Convert to fraction form
    683,140.80/1,024,711.20 = 209,825.40/x
  3. Step 3: Cross multiply
    683,140.80x = 1,024,711.20 × 209,825.40
  4. Step 4: Simplify right side
    683,140.80x = 215,010,437,424.48
  5. Step 5: Solve for x
    x = 215,010,437,424.48/683,140.80
  6. Step 6: Final answer
    x = 314,738.10

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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.