Home / 3,112,689.64-4,668,683.79-838,380.50

Finding the Fourth Proportional to 3,112,689.64, 4,668,683.79 and 838,380.50

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Solution

The fourth proportional to 3,112,689.64, 4,668,683.79 and 838,380.50 is: 1,257,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112,689.64 : 4,668,683.79 = 838,380.50 : x
  2. Step 2: Convert to fraction form
    3,112,689.64/4,668,683.79 = 838,380.50/x
  3. Step 3: Cross multiply
    3,112,689.64x = 4,668,683.79 × 838,380.50
  4. Step 4: Simplify right side
    3,112,689.64x = 3,914,133,465,351.71
  5. Step 5: Solve for x
    x = 3,914,133,465,351.71/3,112,689.64
  6. Step 6: Final answer
    x = 1,257,476.30

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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.