Home / 497,629.20-746,443.80-142,622.40

Finding the Fourth Proportional to 497,629.20, 746,443.80 and 142,622.40

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Solution

The fourth proportional to 497,629.20, 746,443.80 and 142,622.40 is: 213,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,629.20 : 746,443.80 = 142,622.40 : x
  2. Step 2: Convert to fraction form
    497,629.20/746,443.80 = 142,622.40/x
  3. Step 3: Cross multiply
    497,629.20x = 746,443.80 × 142,622.40
  4. Step 4: Simplify right side
    497,629.20x = 106,459,606,221.12
  5. Step 5: Solve for x
    x = 106,459,606,221.12/497,629.20
  6. Step 6: Final answer
    x = 213,933.60

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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.