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Finding the Fourth Proportional to 888,300.80, 1,332,062.40 and 355,644.80

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Solution

The fourth proportional to 888,300.80, 1,332,062.40 and 355,644.80 is: 533,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,300.80 : 1,332,062.40 = 355,644.80 : x
  2. Step 2: Convert to fraction form
    888,300.80/1,332,062.40 = 355,644.80/x
  3. Step 3: Cross multiply
    888,300.80x = 1,332,062.40 × 355,644.80
  4. Step 4: Simplify right side
    888,300.80x = 473,741,065,835.52
  5. Step 5: Solve for x
    x = 473,741,065,835.52/888,300.80
  6. Step 6: Final answer
    x = 533,311.54

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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.