Home / 517,945.60-776,920.20-143,968.24

Finding the Fourth Proportional to 517,945.60, 776,920.20 and 143,968.24

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Solution

The fourth proportional to 517,945.60, 776,920.20 and 143,968.24 is: 215,952.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,945.60 : 776,920.20 = 143,968.24 : x
  2. Step 2: Convert to fraction form
    517,945.60/776,920.20 = 143,968.24/x
  3. Step 3: Cross multiply
    517,945.60x = 776,920.20 × 143,968.24
  4. Step 4: Simplify right side
    517,945.60x = 111,851,833,814.45
  5. Step 5: Solve for x
    x = 111,851,833,814.45/517,945.60
  6. Step 6: Final answer
    x = 215,952.86

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1.5x scale

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.