Home / 578,982.40-867,955.20-379,398.40

Finding the Fourth Proportional to 578,982.40, 867,955.20 and 379,398.40

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Solution

The fourth proportional to 578,982.40, 867,955.20 and 379,398.40 is: 568,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,982.40 : 867,955.20 = 379,398.40 : x
  2. Step 2: Convert to fraction form
    578,982.40/867,955.20 = 379,398.40/x
  3. Step 3: Cross multiply
    578,982.40x = 867,955.20 × 379,398.40
  4. Step 4: Simplify right side
    578,982.40x = 329,300,814,151.68
  5. Step 5: Solve for x
    x = 329,300,814,151.68/578,982.40
  6. Step 6: Final answer
    x = 568,757.90

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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.