Home / 715,911.42-1,071,530.49-526,321.59

Finding the Fourth Proportional to 715,911.42, 1,071,530.49 and 526,321.59

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Solution

The fourth proportional to 715,911.42, 1,071,530.49 and 526,321.59 is: 787,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,911.42 : 1,071,530.49 = 526,321.59 : x
  2. Step 2: Convert to fraction form
    715,911.42/1,071,530.49 = 526,321.59/x
  3. Step 3: Cross multiply
    715,911.42x = 1,071,530.49 × 526,321.59
  4. Step 4: Simplify right side
    715,911.42x = 563,969,631,230.28
  5. Step 5: Solve for x
    x = 563,969,631,230.28/715,911.42
  6. Step 6: Final answer
    x = 787,764.54

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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.