Home / 393,513.20-589,381.68-275,710.40

Finding the Fourth Proportional to 393,513.20, 589,381.68 and 275,710.40

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Solution

The fourth proportional to 393,513.20, 589,381.68 and 275,710.40 is: 412,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,513.20 : 589,381.68 = 275,710.40 : x
  2. Step 2: Convert to fraction form
    393,513.20/589,381.68 = 275,710.40/x
  3. Step 3: Cross multiply
    393,513.20x = 589,381.68 × 275,710.40
  4. Step 4: Simplify right side
    393,513.20x = 162,498,658,745.47
  5. Step 5: Solve for x
    x = 162,498,658,745.47/393,513.20
  6. Step 6: Final answer
    x = 412,943.35

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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.