Home / 480,320.74-720,480.20-451,091.49

Finding the Fourth Proportional to 480,320.74, 720,480.20 and 451,091.49

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Solution

The fourth proportional to 480,320.74, 720,480.20 and 451,091.49 is: 676,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,320.74 : 720,480.20 = 451,091.49 : x
  2. Step 2: Convert to fraction form
    480,320.74/720,480.20 = 451,091.49/x
  3. Step 3: Cross multiply
    480,320.74x = 720,480.20 × 451,091.49
  4. Step 4: Simplify right side
    480,320.74x = 325,002,486,933.50
  5. Step 5: Solve for x
    x = 325,002,486,933.50/480,320.74
  6. Step 6: Final answer
    x = 676,636.38

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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.