Home / 1,409,356.89-2,113,769.66-398,470.82

Finding the Fourth Proportional to 1,409,356.89, 2,113,769.66 and 398,470.82

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Solution

The fourth proportional to 1,409,356.89, 2,113,769.66 and 398,470.82 is: 597,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,356.89 : 2,113,769.66 = 398,470.82 : x
  2. Step 2: Convert to fraction form
    1,409,356.89/2,113,769.66 = 398,470.82/x
  3. Step 3: Cross multiply
    1,409,356.89x = 2,113,769.66 × 398,470.82
  4. Step 4: Simplify right side
    1,409,356.89x = 842,275,517,150.12
  5. Step 5: Solve for x
    x = 842,275,517,150.12/1,409,356.89
  6. Step 6: Final answer
    x = 597,631.11

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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.