Home / 451,091.20-676,809.60-444,006.40

Finding the Fourth Proportional to 451,091.20, 676,809.60 and 444,006.40

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Solution

The fourth proportional to 451,091.20, 676,809.60 and 444,006.40 is: 666,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,091.20 : 676,809.60 = 444,006.40 : x
  2. Step 2: Convert to fraction form
    451,091.20/676,809.60 = 444,006.40/x
  3. Step 3: Cross multiply
    451,091.20x = 676,809.60 × 444,006.40
  4. Step 4: Simplify right side
    451,091.20x = 300,507,793,981.44
  5. Step 5: Solve for x
    x = 300,507,793,981.44/451,091.20
  6. Step 6: Final answer
    x = 666,179.69

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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.