Home / 1,187,929.10-1,781,897.16-289,371.26

Finding the Fourth Proportional to 1,187,929.10, 1,781,897.16 and 289,371.26

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Solution

The fourth proportional to 1,187,929.10, 1,781,897.16 and 289,371.26 is: 434,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,929.10 : 1,781,897.16 = 289,371.26 : x
  2. Step 2: Convert to fraction form
    1,187,929.10/1,781,897.16 = 289,371.26/x
  3. Step 3: Cross multiply
    1,187,929.10x = 1,781,897.16 × 289,371.26
  4. Step 4: Simplify right side
    1,187,929.10x = 515,629,826,379.62
  5. Step 5: Solve for x
    x = 515,629,826,379.62/1,187,929.10
  6. Step 6: Final answer
    x = 434,057.75

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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.