Home / 1,913,436-2,640,422.88-1,053,948.24

Finding the Fourth Proportional to 1,913,436, 2,640,422.88 and 1,053,948.24

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Solution

The fourth proportional to 1,913,436, 2,640,422.88 and 1,053,948.24 is: 1,454,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,436 : 2,640,422.88 = 1,053,948.24 : x
  2. Step 2: Convert to fraction form
    1,913,436/2,640,422.88 = 1,053,948.24/x
  3. Step 3: Cross multiply
    1,913,436x = 2,640,422.88 × 1,053,948.24
  4. Step 4: Simplify right side
    1,913,436x = 2,782,869,047,231.73
  5. Step 5: Solve for x
    x = 2,782,869,047,231.73/1,913,436
  6. Step 6: Final answer
    x = 1,454,383.13

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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.