Home / 783,852.45-1,175,652.81-215,100.72

Finding the Fourth Proportional to 783,852.45, 1,175,652.81 and 215,100.72

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Solution

The fourth proportional to 783,852.45, 1,175,652.81 and 215,100.72 is: 322,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,852.45 : 1,175,652.81 = 215,100.72 : x
  2. Step 2: Convert to fraction form
    783,852.45/1,175,652.81 = 215,100.72/x
  3. Step 3: Cross multiply
    783,852.45x = 1,175,652.81 × 215,100.72
  4. Step 4: Simplify right side
    783,852.45x = 252,883,765,901.02
  5. Step 5: Solve for x
    x = 252,883,765,901.02/783,852.45
  6. Step 6: Final answer
    x = 322,616.54

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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.