Home / 840,819.20-1,259,155.20-558,809.60

Finding the Fourth Proportional to 840,819.20, 1,259,155.20 and 558,809.60

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Solution

The fourth proportional to 840,819.20, 1,259,155.20 and 558,809.60 is: 836,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,819.20 : 1,259,155.20 = 558,809.60 : x
  2. Step 2: Convert to fraction form
    840,819.20/1,259,155.20 = 558,809.60/x
  3. Step 3: Cross multiply
    840,819.20x = 1,259,155.20 × 558,809.60
  4. Step 4: Simplify right side
    840,819.20x = 703,628,013,649.92
  5. Step 5: Solve for x
    x = 703,628,013,649.92/840,819.20
  6. Step 6: Final answer
    x = 836,836.28

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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.