Home / 931,720.76-1,285,999.98-868,683.32

Finding the Fourth Proportional to 931,720.76, 1,285,999.98 and 868,683.32

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Solution

The fourth proportional to 931,720.76, 1,285,999.98 and 868,683.32 is: 1,198,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,720.76 : 1,285,999.98 = 868,683.32 : x
  2. Step 2: Convert to fraction form
    931,720.76/1,285,999.98 = 868,683.32/x
  3. Step 3: Cross multiply
    931,720.76x = 1,285,999.98 × 868,683.32
  4. Step 4: Simplify right side
    931,720.76x = 1,117,126,732,146.33
  5. Step 5: Solve for x
    x = 1,117,126,732,146.33/931,720.76
  6. Step 6: Final answer
    x = 1,198,993.07

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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.