Home / 2,115,007.80-3,172,511.70-695,207.40

Finding the Fourth Proportional to 2,115,007.80, 3,172,511.70 and 695,207.40

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Solution

The fourth proportional to 2,115,007.80, 3,172,511.70 and 695,207.40 is: 1,042,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,007.80 : 3,172,511.70 = 695,207.40 : x
  2. Step 2: Convert to fraction form
    2,115,007.80/3,172,511.70 = 695,207.40/x
  3. Step 3: Cross multiply
    2,115,007.80x = 3,172,511.70 × 695,207.40
  4. Step 4: Simplify right side
    2,115,007.80x = 2,205,553,610,426.58
  5. Step 5: Solve for x
    x = 2,205,553,610,426.58/2,115,007.80
  6. Step 6: Final answer
    x = 1,042,811.10

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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.