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Finding the Fourth Proportional to 888,465.12, 1,332,696.61 and 289,425.30

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Solution

The fourth proportional to 888,465.12, 1,332,696.61 and 289,425.30 is: 434,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,465.12 : 1,332,696.61 = 289,425.30 : x
  2. Step 2: Convert to fraction form
    888,465.12/1,332,696.61 = 289,425.30/x
  3. Step 3: Cross multiply
    888,465.12x = 1,332,696.61 × 289,425.30
  4. Step 4: Simplify right side
    888,465.12x = 385,716,116,158.23
  5. Step 5: Solve for x
    x = 385,716,116,158.23/888,465.12
  6. Step 6: Final answer
    x = 434,137.60

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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.