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Finding the Fourth Proportional to 888,674.68, 1,226,369.74 and 480,775.20

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Solution

The fourth proportional to 888,674.68, 1,226,369.74 and 480,775.20 is: 663,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,674.68 : 1,226,369.74 = 480,775.20 : x
  2. Step 2: Convert to fraction form
    888,674.68/1,226,369.74 = 480,775.20/x
  3. Step 3: Cross multiply
    888,674.68x = 1,226,369.74 × 480,775.20
  4. Step 4: Simplify right side
    888,674.68x = 589,608,157,022.45
  5. Step 5: Solve for x
    x = 589,608,157,022.45/888,674.68
  6. Step 6: Final answer
    x = 663,469.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.