Home / 1,753,228.80-2,629,843.20-687,722.40

Finding the Fourth Proportional to 1,753,228.80, 2,629,843.20 and 687,722.40

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Solution

The fourth proportional to 1,753,228.80, 2,629,843.20 and 687,722.40 is: 1,031,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,228.80 : 2,629,843.20 = 687,722.40 : x
  2. Step 2: Convert to fraction form
    1,753,228.80/2,629,843.20 = 687,722.40/x
  3. Step 3: Cross multiply
    1,753,228.80x = 2,629,843.20 × 687,722.40
  4. Step 4: Simplify right side
    1,753,228.80x = 1,808,602,077,127.68
  5. Step 5: Solve for x
    x = 1,808,602,077,127.68/1,753,228.80
  6. Step 6: Final answer
    x = 1,031,583.60

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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.