Home / 806,819.20-1,210,228.80-508,220.80

Finding the Fourth Proportional to 806,819.20, 1,210,228.80 and 508,220.80

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Solution

The fourth proportional to 806,819.20, 1,210,228.80 and 508,220.80 is: 762,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,819.20 : 1,210,228.80 = 508,220.80 : x
  2. Step 2: Convert to fraction form
    806,819.20/1,210,228.80 = 508,220.80/x
  3. Step 3: Cross multiply
    806,819.20x = 1,210,228.80 × 508,220.80
  4. Step 4: Simplify right side
    806,819.20x = 615,063,448,919.04
  5. Step 5: Solve for x
    x = 615,063,448,919.04/806,819.20
  6. Step 6: Final answer
    x = 762,331.20

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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.