Home / 1,123,977.60-1,685,966.40-325,285.20

Finding the Fourth Proportional to 1,123,977.60, 1,685,966.40 and 325,285.20

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Solution

The fourth proportional to 1,123,977.60, 1,685,966.40 and 325,285.20 is: 487,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,977.60 : 1,685,966.40 = 325,285.20 : x
  2. Step 2: Convert to fraction form
    1,123,977.60/1,685,966.40 = 325,285.20/x
  3. Step 3: Cross multiply
    1,123,977.60x = 1,685,966.40 × 325,285.20
  4. Step 4: Simplify right side
    1,123,977.60x = 548,419,917,617.28
  5. Step 5: Solve for x
    x = 548,419,917,617.28/1,123,977.60
  6. Step 6: Final answer
    x = 487,927.80

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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.