Home / 1,520,097.28-2,097,701.80-831,766.48

Finding the Fourth Proportional to 1,520,097.28, 2,097,701.80 and 831,766.48

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Solution

The fourth proportional to 1,520,097.28, 2,097,701.80 and 831,766.48 is: 1,147,819.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,097.28 : 2,097,701.80 = 831,766.48 : x
  2. Step 2: Convert to fraction form
    1,520,097.28/2,097,701.80 = 831,766.48/x
  3. Step 3: Cross multiply
    1,520,097.28x = 2,097,701.80 × 831,766.48
  4. Step 4: Simplify right side
    1,520,097.28x = 1,744,798,042,275.66
  5. Step 5: Solve for x
    x = 1,744,798,042,275.66/1,520,097.28
  6. Step 6: Final answer
    x = 1,147,819.99

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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.