Home / 851,775.93-1,175,448.60-489,223.29

Finding the Fourth Proportional to 851,775.93, 1,175,448.60 and 489,223.29

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Solution

The fourth proportional to 851,775.93, 1,175,448.60 and 489,223.29 is: 675,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,775.93 : 1,175,448.60 = 489,223.29 : x
  2. Step 2: Convert to fraction form
    851,775.93/1,175,448.60 = 489,223.29/x
  3. Step 3: Cross multiply
    851,775.93x = 1,175,448.60 × 489,223.29
  4. Step 4: Simplify right side
    851,775.93x = 575,056,831,317.89
  5. Step 5: Solve for x
    x = 575,056,831,317.89/851,775.93
  6. Step 6: Final answer
    x = 675,126.89

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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.