Home / 1,587,631.92-2,190,974.04-908,787.12

Finding the Fourth Proportional to 1,587,631.92, 2,190,974.04 and 908,787.12

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Solution

The fourth proportional to 1,587,631.92, 2,190,974.04 and 908,787.12 is: 1,254,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,631.92 : 2,190,974.04 = 908,787.12 : x
  2. Step 2: Convert to fraction form
    1,587,631.92/2,190,974.04 = 908,787.12/x
  3. Step 3: Cross multiply
    1,587,631.92x = 2,190,974.04 × 908,787.12
  4. Step 4: Simplify right side
    1,587,631.92x = 1,991,128,987,806.36
  5. Step 5: Solve for x
    x = 1,991,128,987,806.36/1,587,631.92
  6. Step 6: Final answer
    x = 1,254,150.26

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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.