Home / 1,615,139.80-2,422,515.30-668,411.80

Finding the Fourth Proportional to 1,615,139.80, 2,422,515.30 and 668,411.80

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Solution

The fourth proportional to 1,615,139.80, 2,422,515.30 and 668,411.80 is: 1,002,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,139.80 : 2,422,515.30 = 668,411.80 : x
  2. Step 2: Convert to fraction form
    1,615,139.80/2,422,515.30 = 668,411.80/x
  3. Step 3: Cross multiply
    1,615,139.80x = 2,422,515.30 × 668,411.80
  4. Step 4: Simplify right side
    1,615,139.80x = 1,619,237,812,200.54
  5. Step 5: Solve for x
    x = 1,619,237,812,200.54/1,615,139.80
  6. Step 6: Final answer
    x = 1,002,537.25

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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.