Home / 497,889.45-746,945.21-142,875.80

Finding the Fourth Proportional to 497,889.45, 746,945.21 and 142,875.80

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Solution

The fourth proportional to 497,889.45, 746,945.21 and 142,875.80 is: 214,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,889.45 : 746,945.21 = 142,875.80 : x
  2. Step 2: Convert to fraction form
    497,889.45/746,945.21 = 142,875.80/x
  3. Step 3: Cross multiply
    497,889.45x = 746,945.21 × 142,875.80
  4. Step 4: Simplify right side
    497,889.45x = 106,720,393,858.43
  5. Step 5: Solve for x
    x = 106,720,393,858.43/497,889.45
  6. Step 6: Final answer
    x = 214,345.56

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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.