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Finding the Fourth Proportional to 888,040.40, 1,332,060.60 and 389,404.40

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Solution

The fourth proportional to 888,040.40, 1,332,060.60 and 389,404.40 is: 584,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,040.40 : 1,332,060.60 = 389,404.40 : x
  2. Step 2: Convert to fraction form
    888,040.40/1,332,060.60 = 389,404.40/x
  3. Step 3: Cross multiply
    888,040.40x = 1,332,060.60 × 389,404.40
  4. Step 4: Simplify right side
    888,040.40x = 518,710,258,706.64
  5. Step 5: Solve for x
    x = 518,710,258,706.64/888,040.40
  6. Step 6: Final answer
    x = 584,106.60

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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.