Home / 2,628,320.61-3,942,454.64-831,204.39

Finding the Fourth Proportional to 2,628,320.61, 3,942,454.64 and 831,204.39

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Solution

The fourth proportional to 2,628,320.61, 3,942,454.64 and 831,204.39 is: 1,246,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,320.61 : 3,942,454.64 = 831,204.39 : x
  2. Step 2: Convert to fraction form
    2,628,320.61/3,942,454.64 = 831,204.39/x
  3. Step 3: Cross multiply
    2,628,320.61x = 3,942,454.64 × 831,204.39
  4. Step 4: Simplify right side
    2,628,320.61x = 3,276,985,580,275.57
  5. Step 5: Solve for x
    x = 3,276,985,580,275.57/2,628,320.61
  6. Step 6: Final answer
    x = 1,246,798.27

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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.