Home / 683,890.87-1,024,995.43-383,740.92

Finding the Fourth Proportional to 683,890.87, 1,024,995.43 and 383,740.92

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Solution

The fourth proportional to 683,890.87, 1,024,995.43 and 383,740.92 is: 575,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,890.87 : 1,024,995.43 = 383,740.92 : x
  2. Step 2: Convert to fraction form
    683,890.87/1,024,995.43 = 383,740.92/x
  3. Step 3: Cross multiply
    683,890.87x = 1,024,995.43 × 383,740.92
  4. Step 4: Simplify right side
    683,890.87x = 393,332,689,304.00
  5. Step 5: Solve for x
    x = 393,332,689,304.00/683,890.87
  6. Step 6: Final answer
    x = 575,139.55

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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.