Home / 851,633.29-1,175,436.33-489,256.96

Finding the Fourth Proportional to 851,633.29, 1,175,436.33 and 489,256.96

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Solution

The fourth proportional to 851,633.29, 1,175,436.33 and 489,256.96 is: 675,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,633.29 : 1,175,436.33 = 489,256.96 : x
  2. Step 2: Convert to fraction form
    851,633.29/1,175,436.33 = 489,256.96/x
  3. Step 3: Cross multiply
    851,633.29x = 1,175,436.33 × 489,256.96
  4. Step 4: Simplify right side
    851,633.29x = 575,090,407,048.10
  5. Step 5: Solve for x
    x = 575,090,407,048.10/851,633.29
  6. Step 6: Final answer
    x = 675,279.39

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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.