Home / 885,725.74-1,328,799.57-286,687

Finding the Fourth Proportional to 885,725.74, 1,328,799.57 and 286,687

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Solution

The fourth proportional to 885,725.74, 1,328,799.57 and 286,687 is: 430,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,725.74 : 1,328,799.57 = 286,687 : x
  2. Step 2: Convert to fraction form
    885,725.74/1,328,799.57 = 286,687/x
  3. Step 3: Cross multiply
    885,725.74x = 1,328,799.57 × 286,687
  4. Step 4: Simplify right side
    885,725.74x = 380,949,562,324.59
  5. Step 5: Solve for x
    x = 380,949,562,324.59/885,725.74
  6. Step 6: Final answer
    x = 430,098.78

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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.