Home / 787,291.72-1,086,985.52-605,683.24

Finding the Fourth Proportional to 787,291.72, 1,086,985.52 and 605,683.24

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Solution

The fourth proportional to 787,291.72, 1,086,985.52 and 605,683.24 is: 836,245.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,291.72 : 1,086,985.52 = 605,683.24 : x
  2. Step 2: Convert to fraction form
    787,291.72/1,086,985.52 = 605,683.24/x
  3. Step 3: Cross multiply
    787,291.72x = 1,086,985.52 × 605,683.24
  4. Step 4: Simplify right side
    787,291.72x = 658,368,915,818.36
  5. Step 5: Solve for x
    x = 658,368,915,818.36/787,291.72
  6. Step 6: Final answer
    x = 836,245.19

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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.