Home / 727,814.20-1,091,721.30-515,237.80

Finding the Fourth Proportional to 727,814.20, 1,091,721.30 and 515,237.80

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Solution

The fourth proportional to 727,814.20, 1,091,721.30 and 515,237.80 is: 772,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,814.20 : 1,091,721.30 = 515,237.80 : x
  2. Step 2: Convert to fraction form
    727,814.20/1,091,721.30 = 515,237.80/x
  3. Step 3: Cross multiply
    727,814.20x = 1,091,721.30 × 515,237.80
  4. Step 4: Simplify right side
    727,814.20x = 562,496,080,825.14
  5. Step 5: Solve for x
    x = 562,496,080,825.14/727,814.20
  6. Step 6: Final answer
    x = 772,856.70

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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.