Home / 718,399.20-1,078,765.20-482,786.40

Finding the Fourth Proportional to 718,399.20, 1,078,765.20 and 482,786.40

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Solution

The fourth proportional to 718,399.20, 1,078,765.20 and 482,786.40 is: 724,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,399.20 : 1,078,765.20 = 482,786.40 : x
  2. Step 2: Convert to fraction form
    718,399.20/1,078,765.20 = 482,786.40/x
  3. Step 3: Cross multiply
    718,399.20x = 1,078,765.20 × 482,786.40
  4. Step 4: Simplify right side
    718,399.20x = 520,813,167,353.28
  5. Step 5: Solve for x
    x = 520,813,167,353.28/718,399.20
  6. Step 6: Final answer
    x = 724,963.46

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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.