Home / 780,083.40-1,170,038.70-219,174.60

Finding the Fourth Proportional to 780,083.40, 1,170,038.70 and 219,174.60

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Solution

The fourth proportional to 780,083.40, 1,170,038.70 and 219,174.60 is: 328,737.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,083.40 : 1,170,038.70 = 219,174.60 : x
  2. Step 2: Convert to fraction form
    780,083.40/1,170,038.70 = 219,174.60/x
  3. Step 3: Cross multiply
    780,083.40x = 1,170,038.70 × 219,174.60
  4. Step 4: Simplify right side
    780,083.40x = 256,442,764,057.02
  5. Step 5: Solve for x
    x = 256,442,764,057.02/780,083.40
  6. Step 6: Final answer
    x = 328,737.62

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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.