Home / 1,915,283.20-2,643,098.80-1,055,824.60

Finding the Fourth Proportional to 1,915,283.20, 2,643,098.80 and 1,055,824.60

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Solution

The fourth proportional to 1,915,283.20, 2,643,098.80 and 1,055,824.60 is: 1,457,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,283.20 : 2,643,098.80 = 1,055,824.60 : x
  2. Step 2: Convert to fraction form
    1,915,283.20/2,643,098.80 = 1,055,824.60/x
  3. Step 3: Cross multiply
    1,915,283.20x = 2,643,098.80 × 1,055,824.60
  4. Step 4: Simplify right side
    1,915,283.20x = 2,790,648,733,270.48
  5. Step 5: Solve for x
    x = 2,790,648,733,270.48/1,915,283.20
  6. Step 6: Final answer
    x = 1,457,042.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.