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Finding the Fourth Proportional to 887,626, 1,224,923.88 and 485,218

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Solution

The fourth proportional to 887,626, 1,224,923.88 and 485,218 is: 669,600.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,626 : 1,224,923.88 = 485,218 : x
  2. Step 2: Convert to fraction form
    887,626/1,224,923.88 = 485,218/x
  3. Step 3: Cross multiply
    887,626x = 1,224,923.88 × 485,218
  4. Step 4: Simplify right side
    887,626x = 594,355,115,205.84
  5. Step 5: Solve for x
    x = 594,355,115,205.84/887,626
  6. Step 6: Final answer
    x = 669,600.84

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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.