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Finding the Fourth Proportional to 888,296.80, 1,332,056.40 and 355,640.80

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Solution

The fourth proportional to 888,296.80, 1,332,056.40 and 355,640.80 is: 533,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,296.80 : 1,332,056.40 = 355,640.80 : x
  2. Step 2: Convert to fraction form
    888,296.80/1,332,056.40 = 355,640.80/x
  3. Step 3: Cross multiply
    888,296.80x = 1,332,056.40 × 355,640.80
  4. Step 4: Simplify right side
    888,296.80x = 473,733,603,741.12
  5. Step 5: Solve for x
    x = 473,733,603,741.12/888,296.80
  6. Step 6: Final answer
    x = 533,305.54

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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.