Home / 1,915,850.10-2,643,778.13-1,088,815.53

Finding the Fourth Proportional to 1,915,850.10, 2,643,778.13 and 1,088,815.53

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Solution

The fourth proportional to 1,915,850.10, 2,643,778.13 and 1,088,815.53 is: 1,502,511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,850.10 : 2,643,778.13 = 1,088,815.53 : x
  2. Step 2: Convert to fraction form
    1,915,850.10/2,643,778.13 = 1,088,815.53/x
  3. Step 3: Cross multiply
    1,915,850.10x = 2,643,778.13 × 1,088,815.53
  4. Step 4: Simplify right side
    1,915,850.10x = 2,878,586,685,818.36
  5. Step 5: Solve for x
    x = 2,878,586,685,818.36/1,915,850.10
  6. Step 6: Final answer
    x = 1,502,511.44

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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.