Home / 497,789.60-746,684.40-420,029.60

Finding the Fourth Proportional to 497,789.60, 746,684.40 and 420,029.60

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Solution

The fourth proportional to 497,789.60, 746,684.40 and 420,029.60 is: 630,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,789.60 : 746,684.40 = 420,029.60 : x
  2. Step 2: Convert to fraction form
    497,789.60/746,684.40 = 420,029.60/x
  3. Step 3: Cross multiply
    497,789.60x = 746,684.40 × 420,029.60
  4. Step 4: Simplify right side
    497,789.60x = 313,629,549,858.24
  5. Step 5: Solve for x
    x = 313,629,549,858.24/497,789.60
  6. Step 6: Final answer
    x = 630,044.40

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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.