Home / 1,428,969.70-2,143,002.78-469,267.12

Finding the Fourth Proportional to 1,428,969.70, 2,143,002.78 and 469,267.12

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Solution

The fourth proportional to 1,428,969.70, 2,143,002.78 and 469,267.12 is: 703,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,969.70 : 2,143,002.78 = 469,267.12 : x
  2. Step 2: Convert to fraction form
    1,428,969.70/2,143,002.78 = 469,267.12/x
  3. Step 3: Cross multiply
    1,428,969.70x = 2,143,002.78 × 469,267.12
  4. Step 4: Simplify right side
    1,428,969.70x = 1,005,640,742,722.59
  5. Step 5: Solve for x
    x = 1,005,640,742,722.59/1,428,969.70
  6. Step 6: Final answer
    x = 703,752.32

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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.