Home / 1,308,759.92-1,963,139.88-410,206.38

Finding the Fourth Proportional to 1,308,759.92, 1,963,139.88 and 410,206.38

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Solution

The fourth proportional to 1,308,759.92, 1,963,139.88 and 410,206.38 is: 615,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,759.92 : 1,963,139.88 = 410,206.38 : x
  2. Step 2: Convert to fraction form
    1,308,759.92/1,963,139.88 = 410,206.38/x
  3. Step 3: Cross multiply
    1,308,759.92x = 1,963,139.88 × 410,206.38
  4. Step 4: Simplify right side
    1,308,759.92x = 805,292,503,608.43
  5. Step 5: Solve for x
    x = 805,292,503,608.43/1,308,759.92
  6. Step 6: Final answer
    x = 615,309.57

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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.