Home / 818,828.92-1,228,358.22-286,228.80

Finding the Fourth Proportional to 818,828.92, 1,228,358.22 and 286,228.80

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Solution

The fourth proportional to 818,828.92, 1,228,358.22 and 286,228.80 is: 429,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,828.92 : 1,228,358.22 = 286,228.80 : x
  2. Step 2: Convert to fraction form
    818,828.92/1,228,358.22 = 286,228.80/x
  3. Step 3: Cross multiply
    818,828.92x = 1,228,358.22 × 286,228.80
  4. Step 4: Simplify right side
    818,828.92x = 351,591,499,280.74
  5. Step 5: Solve for x
    x = 351,591,499,280.74/818,828.92
  6. Step 6: Final answer
    x = 429,383.34

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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.