Home / 783,189.80-1,174,007.10-361,730.60

Finding the Fourth Proportional to 783,189.80, 1,174,007.10 and 361,730.60

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Solution

The fourth proportional to 783,189.80, 1,174,007.10 and 361,730.60 is: 542,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,189.80 : 1,174,007.10 = 361,730.60 : x
  2. Step 2: Convert to fraction form
    783,189.80/1,174,007.10 = 361,730.60/x
  3. Step 3: Cross multiply
    783,189.80x = 1,174,007.10 × 361,730.60
  4. Step 4: Simplify right side
    783,189.80x = 424,674,292,687.26
  5. Step 5: Solve for x
    x = 424,674,292,687.26/783,189.80
  6. Step 6: Final answer
    x = 542,236.75

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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.