Home / 765,920.76-1,056,810.60-443,611.68

Finding the Fourth Proportional to 765,920.76, 1,056,810.60 and 443,611.68

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Solution

The fourth proportional to 765,920.76, 1,056,810.60 and 443,611.68 is: 612,091.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,920.76 : 1,056,810.60 = 443,611.68 : x
  2. Step 2: Convert to fraction form
    765,920.76/1,056,810.60 = 443,611.68/x
  3. Step 3: Cross multiply
    765,920.76x = 1,056,810.60 × 443,611.68
  4. Step 4: Simplify right side
    765,920.76x = 468,813,525,707.81
  5. Step 5: Solve for x
    x = 468,813,525,707.81/765,920.76
  6. Step 6: Final answer
    x = 612,091.42

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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.