Home / 1,127,043-1,690,662.90-285,594.78

Finding the Fourth Proportional to 1,127,043, 1,690,662.90 and 285,594.78

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Solution

The fourth proportional to 1,127,043, 1,690,662.90 and 285,594.78 is: 428,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,043 : 1,690,662.90 = 285,594.78 : x
  2. Step 2: Convert to fraction form
    1,127,043/1,690,662.90 = 285,594.78/x
  3. Step 3: Cross multiply
    1,127,043x = 1,690,662.90 × 285,594.78
  4. Step 4: Simplify right side
    1,127,043x = 482,844,498,979.66
  5. Step 5: Solve for x
    x = 482,844,498,979.66/1,127,043
  6. Step 6: Final answer
    x = 428,417.10

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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.