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Finding the Fourth Proportional to 448,626.78, 619,087.86 and 247,422.78

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Solution

The fourth proportional to 448,626.78, 619,087.86 and 247,422.78 is: 341,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,626.78 : 619,087.86 = 247,422.78 : x
  2. Step 2: Convert to fraction form
    448,626.78/619,087.86 = 247,422.78/x
  3. Step 3: Cross multiply
    448,626.78x = 619,087.86 × 247,422.78
  4. Step 4: Simplify right side
    448,626.78x = 153,176,439,385.45
  5. Step 5: Solve for x
    x = 153,176,439,385.45/448,626.78
  6. Step 6: Final answer
    x = 341,434.01

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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.