Home / 621,260.72-930,525.09-513,422.48

Finding the Fourth Proportional to 621,260.72, 930,525.09 and 513,422.48

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Solution

The fourth proportional to 621,260.72, 930,525.09 and 513,422.48 is: 769,004.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,260.72 : 930,525.09 = 513,422.48 : x
  2. Step 2: Convert to fraction form
    621,260.72/930,525.09 = 513,422.48/x
  3. Step 3: Cross multiply
    621,260.72x = 930,525.09 × 513,422.48
  4. Step 4: Simplify right side
    621,260.72x = 477,752,494,757.40
  5. Step 5: Solve for x
    x = 477,752,494,757.40/621,260.72
  6. Step 6: Final answer
    x = 769,004.84

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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.