Home / 1,220,149.17-1,683,906.62-676,455.50

Finding the Fourth Proportional to 1,220,149.17, 1,683,906.62 and 676,455.50

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Solution

The fourth proportional to 1,220,149.17, 1,683,906.62 and 676,455.50 is: 933,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,149.17 : 1,683,906.62 = 676,455.50 : x
  2. Step 2: Convert to fraction form
    1,220,149.17/1,683,906.62 = 676,455.50/x
  3. Step 3: Cross multiply
    1,220,149.17x = 1,683,906.62 × 676,455.50
  4. Step 4: Simplify right side
    1,220,149.17x = 1,139,087,899,217.96
  5. Step 5: Solve for x
    x = 1,139,087,899,217.96/1,220,149.17
  6. Step 6: Final answer
    x = 933,564.46

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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.