Home / 1,220,510.82-1,684,404.39-676,817.10

Finding the Fourth Proportional to 1,220,510.82, 1,684,404.39 and 676,817.10

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Solution

The fourth proportional to 1,220,510.82, 1,684,404.39 and 676,817.10 is: 934,062.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,510.82 : 1,684,404.39 = 676,817.10 : x
  2. Step 2: Convert to fraction form
    1,220,510.82/1,684,404.39 = 676,817.10/x
  3. Step 3: Cross multiply
    1,220,510.82x = 1,684,404.39 × 676,817.10
  4. Step 4: Simplify right side
    1,220,510.82x = 1,140,033,694,467.07
  5. Step 5: Solve for x
    x = 1,140,033,694,467.07/1,220,510.82
  6. Step 6: Final answer
    x = 934,062.75

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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.