Home / 727,807.70-1,091,711.55-515,231.30

Finding the Fourth Proportional to 727,807.70, 1,091,711.55 and 515,231.30

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Solution

The fourth proportional to 727,807.70, 1,091,711.55 and 515,231.30 is: 772,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,807.70 : 1,091,711.55 = 515,231.30 : x
  2. Step 2: Convert to fraction form
    727,807.70/1,091,711.55 = 515,231.30/x
  3. Step 3: Cross multiply
    727,807.70x = 1,091,711.55 × 515,231.30
  4. Step 4: Simplify right side
    727,807.70x = 562,483,961,131.52
  5. Step 5: Solve for x
    x = 562,483,961,131.52/727,807.70
  6. Step 6: Final answer
    x = 772,846.95

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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.