Home / 1,521,424.84-2,099,559.06-823,706.20

Finding the Fourth Proportional to 1,521,424.84, 2,099,559.06 and 823,706.20

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Solution

The fourth proportional to 1,521,424.84, 2,099,559.06 and 823,706.20 is: 1,136,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,424.84 : 2,099,559.06 = 823,706.20 : x
  2. Step 2: Convert to fraction form
    1,521,424.84/2,099,559.06 = 823,706.20/x
  3. Step 3: Cross multiply
    1,521,424.84x = 2,099,559.06 × 823,706.20
  4. Step 4: Simplify right side
    1,521,424.84x = 1,729,419,814,988.17
  5. Step 5: Solve for x
    x = 1,729,419,814,988.17/1,521,424.84
  6. Step 6: Final answer
    x = 1,136,710.65

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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.