Home / 1,227,228.80-1,840,091.52-478,400

Finding the Fourth Proportional to 1,227,228.80, 1,840,091.52 and 478,400

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Solution

The fourth proportional to 1,227,228.80, 1,840,091.52 and 478,400 is: 717,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,228.80 : 1,840,091.52 = 478,400 : x
  2. Step 2: Convert to fraction form
    1,227,228.80/1,840,091.52 = 478,400/x
  3. Step 3: Cross multiply
    1,227,228.80x = 1,840,091.52 × 478,400
  4. Step 4: Simplify right side
    1,227,228.80x = 880,299,783,168
  5. Step 5: Solve for x
    x = 880,299,783,168/1,227,228.80
  6. Step 6: Final answer
    x = 717,306.98

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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.