Home / 1,384,711.20-2,076,872.40-438,177.60

Finding the Fourth Proportional to 1,384,711.20, 2,076,872.40 and 438,177.60

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Solution

The fourth proportional to 1,384,711.20, 2,076,872.40 and 438,177.60 is: 657,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,711.20 : 2,076,872.40 = 438,177.60 : x
  2. Step 2: Convert to fraction form
    1,384,711.20/2,076,872.40 = 438,177.60/x
  3. Step 3: Cross multiply
    1,384,711.20x = 2,076,872.40 × 438,177.60
  4. Step 4: Simplify right side
    1,384,711.20x = 910,038,963,738.24
  5. Step 5: Solve for x
    x = 910,038,963,738.24/1,384,711.20
  6. Step 6: Final answer
    x = 657,204.88

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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.