Home / 1,968,761.84-2,949,818.40-1,209,019.92

Finding the Fourth Proportional to 1,968,761.84, 2,949,818.40 and 1,209,019.92

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Solution

The fourth proportional to 1,968,761.84, 2,949,818.40 and 1,209,019.92 is: 1,811,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,761.84 : 2,949,818.40 = 1,209,019.92 : x
  2. Step 2: Convert to fraction form
    1,968,761.84/2,949,818.40 = 1,209,019.92/x
  3. Step 3: Cross multiply
    1,968,761.84x = 2,949,818.40 × 1,209,019.92
  4. Step 4: Simplify right side
    1,968,761.84x = 3,566,389,205,982.53
  5. Step 5: Solve for x
    x = 3,566,389,205,982.53/1,968,761.84
  6. Step 6: Final answer
    x = 1,811,488.38

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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.