Home / 515,060.20-772,590.30-486,029.80

Finding the Fourth Proportional to 515,060.20, 772,590.30 and 486,029.80

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Solution

The fourth proportional to 515,060.20, 772,590.30 and 486,029.80 is: 729,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,060.20 : 772,590.30 = 486,029.80 : x
  2. Step 2: Convert to fraction form
    515,060.20/772,590.30 = 486,029.80/x
  3. Step 3: Cross multiply
    515,060.20x = 772,590.30 × 486,029.80
  4. Step 4: Simplify right side
    515,060.20x = 375,501,908,990.94
  5. Step 5: Solve for x
    x = 375,501,908,990.94/515,060.20
  6. Step 6: Final answer
    x = 729,044.70

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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.