Home / 807,717.20-1,211,138.40-333,867.20

Finding the Fourth Proportional to 807,717.20, 1,211,138.40 and 333,867.20

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Solution

The fourth proportional to 807,717.20, 1,211,138.40 and 333,867.20 is: 500,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,717.20 : 1,211,138.40 = 333,867.20 : x
  2. Step 2: Convert to fraction form
    807,717.20/1,211,138.40 = 333,867.20/x
  3. Step 3: Cross multiply
    807,717.20x = 1,211,138.40 × 333,867.20
  4. Step 4: Simplify right side
    807,717.20x = 404,359,386,420.48
  5. Step 5: Solve for x
    x = 404,359,386,420.48/807,717.20
  6. Step 6: Final answer
    x = 500,620.00

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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.