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Finding the Fourth Proportional to 889,772.60, 1,227,880.01 and 481,865.10

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Solution

The fourth proportional to 889,772.60, 1,227,880.01 and 481,865.10 is: 664,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,772.60 : 1,227,880.01 = 481,865.10 : x
  2. Step 2: Convert to fraction form
    889,772.60/1,227,880.01 = 481,865.10/x
  3. Step 3: Cross multiply
    889,772.60x = 1,227,880.01 × 481,865.10
  4. Step 4: Simplify right side
    889,772.60x = 591,672,527,313.59
  5. Step 5: Solve for x
    x = 591,672,527,313.59/889,772.60
  6. Step 6: Final answer
    x = 664,970.50

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1.5x scale

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.