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Finding the Fourth Proportional to 2,659,570.82, 3,984,545.16 and 1,221,457.22

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Solution

The fourth proportional to 2,659,570.82, 3,984,545.16 and 1,221,457.22 is: 1,829,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,570.82 : 3,984,545.16 = 1,221,457.22 : x
  2. Step 2: Convert to fraction form
    2,659,570.82/3,984,545.16 = 1,221,457.22/x
  3. Step 3: Cross multiply
    2,659,570.82x = 3,984,545.16 × 1,221,457.22
  4. Step 4: Simplify right side
    2,659,570.82x = 4,866,951,428,068.04
  5. Step 5: Solve for x
    x = 4,866,951,428,068.04/2,659,570.82
  6. Step 6: Final answer
    x = 1,829,976.25

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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.