Home / 2,145,220.20-2,960,667.45-1,239,802.20

Finding the Fourth Proportional to 2,145,220.20, 2,960,667.45 and 1,239,802.20

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Solution

The fourth proportional to 2,145,220.20, 2,960,667.45 and 1,239,802.20 is: 1,711,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,220.20 : 2,960,667.45 = 1,239,802.20 : x
  2. Step 2: Convert to fraction form
    2,145,220.20/2,960,667.45 = 1,239,802.20/x
  3. Step 3: Cross multiply
    2,145,220.20x = 2,960,667.45 × 1,239,802.20
  4. Step 4: Simplify right side
    2,145,220.20x = 3,670,642,017,978.39
  5. Step 5: Solve for x
    x = 3,670,642,017,978.39/2,145,220.20
  6. Step 6: Final answer
    x = 1,711,079.37

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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.