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Finding the Fourth Proportional to 888,561.80, 1,332,453.90 and 355,905.80

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Solution

The fourth proportional to 888,561.80, 1,332,453.90 and 355,905.80 is: 533,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,561.80 : 1,332,453.90 = 355,905.80 : x
  2. Step 2: Convert to fraction form
    888,561.80/1,332,453.90 = 355,905.80/x
  3. Step 3: Cross multiply
    888,561.80x = 1,332,453.90 × 355,905.80
  4. Step 4: Simplify right side
    888,561.80x = 474,228,071,242.62
  5. Step 5: Solve for x
    x = 474,228,071,242.62/888,561.80
  6. Step 6: Final answer
    x = 533,702.97

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1.5x scale

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.