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Finding the Fourth Proportional to 648,493.94, 888,432.55 and 624,243.36

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Solution

The fourth proportional to 648,493.94, 888,432.55 and 624,243.36 is: 855,209.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,493.94 : 888,432.55 = 624,243.36 : x
  2. Step 2: Convert to fraction form
    648,493.94/888,432.55 = 624,243.36/x
  3. Step 3: Cross multiply
    648,493.94x = 888,432.55 × 624,243.36
  4. Step 4: Simplify right side
    648,493.94x = 554,598,123,086.84
  5. Step 5: Solve for x
    x = 554,598,123,086.84/648,493.94
  6. Step 6: Final answer
    x = 855,209.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.