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Finding the Fourth Proportional to 697,251.36, 962,208.88 and 387,154.60

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Solution

The fourth proportional to 697,251.36, 962,208.88 and 387,154.60 is: 534,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,251.36 : 962,208.88 = 387,154.60 : x
  2. Step 2: Convert to fraction form
    697,251.36/962,208.88 = 387,154.60/x
  3. Step 3: Cross multiply
    697,251.36x = 962,208.88 × 387,154.60
  4. Step 4: Simplify right side
    697,251.36x = 372,523,594,052.85
  5. Step 5: Solve for x
    x = 372,523,594,052.85/697,251.36
  6. Step 6: Final answer
    x = 534,274.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.