Home / 786,995.77-1,180,361.60-218,434.63

Finding the Fourth Proportional to 786,995.77, 1,180,361.60 and 218,434.63

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Solution

The fourth proportional to 786,995.77, 1,180,361.60 and 218,434.63 is: 327,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,995.77 : 1,180,361.60 = 218,434.63 : x
  2. Step 2: Convert to fraction form
    786,995.77/1,180,361.60 = 218,434.63/x
  3. Step 3: Cross multiply
    786,995.77x = 1,180,361.60 × 218,434.63
  4. Step 4: Simplify right side
    786,995.77x = 257,831,850,018.53
  5. Step 5: Solve for x
    x = 257,831,850,018.53/786,995.77
  6. Step 6: Final answer
    x = 327,615.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.