Home / 1,511,463.40-2,085,821.70-823,136.72

Finding the Fourth Proportional to 1,511,463.40, 2,085,821.70 and 823,136.72

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Solution

The fourth proportional to 1,511,463.40, 2,085,821.70 and 823,136.72 is: 1,135,929.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,463.40 : 2,085,821.70 = 823,136.72 : x
  2. Step 2: Convert to fraction form
    1,511,463.40/2,085,821.70 = 823,136.72/x
  3. Step 3: Cross multiply
    1,511,463.40x = 2,085,821.70 × 823,136.72
  4. Step 4: Simplify right side
    1,511,463.40x = 1,716,916,432,642.82
  5. Step 5: Solve for x
    x = 1,716,916,432,642.82/1,511,463.40
  6. Step 6: Final answer
    x = 1,135,929.88

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1.5x scale

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.