Home / 913,832.57-1,370,904.44-458,640.87

Finding the Fourth Proportional to 913,832.57, 1,370,904.44 and 458,640.87

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Solution

The fourth proportional to 913,832.57, 1,370,904.44 and 458,640.87 is: 688,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,832.57 : 1,370,904.44 = 458,640.87 : x
  2. Step 2: Convert to fraction form
    913,832.57/1,370,904.44 = 458,640.87/x
  3. Step 3: Cross multiply
    913,832.57x = 1,370,904.44 × 458,640.87
  4. Step 4: Simplify right side
    913,832.57x = 628,752,802,755.26
  5. Step 5: Solve for x
    x = 628,752,802,755.26/913,832.57
  6. Step 6: Final answer
    x = 688,039.39

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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.