Home / 2,872,769.12-3,964,419.78-1,583,631

Finding the Fourth Proportional to 2,872,769.12, 3,964,419.78 and 1,583,631

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Solution

The fourth proportional to 2,872,769.12, 3,964,419.78 and 1,583,631 is: 2,185,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,769.12 : 3,964,419.78 = 1,583,631 : x
  2. Step 2: Convert to fraction form
    2,872,769.12/3,964,419.78 = 1,583,631/x
  3. Step 3: Cross multiply
    2,872,769.12x = 3,964,419.78 × 1,583,631
  4. Step 4: Simplify right side
    2,872,769.12x = 6,278,178,060,621.18
  5. Step 5: Solve for x
    x = 6,278,178,060,621.18/2,872,769.12
  6. Step 6: Final answer
    x = 2,185,409.89

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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.