Home / 1,300,518.40-1,949,222.40-669,107.20

Finding the Fourth Proportional to 1,300,518.40, 1,949,222.40 and 669,107.20

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Solution

The fourth proportional to 1,300,518.40, 1,949,222.40 and 669,107.20 is: 1,002,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,518.40 : 1,949,222.40 = 669,107.20 : x
  2. Step 2: Convert to fraction form
    1,300,518.40/1,949,222.40 = 669,107.20/x
  3. Step 3: Cross multiply
    1,300,518.40x = 1,949,222.40 × 669,107.20
  4. Step 4: Simplify right side
    1,300,518.40x = 1,304,238,742,241.28
  5. Step 5: Solve for x
    x = 1,304,238,742,241.28/1,300,518.40
  6. Step 6: Final answer
    x = 1,002,860.66

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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.