Home / 745,099.08-1,117,837.26-212,622

Finding the Fourth Proportional to 745,099.08, 1,117,837.26 and 212,622

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Solution

The fourth proportional to 745,099.08, 1,117,837.26 and 212,622 is: 318,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,099.08 : 1,117,837.26 = 212,622 : x
  2. Step 2: Convert to fraction form
    745,099.08/1,117,837.26 = 212,622/x
  3. Step 3: Cross multiply
    745,099.08x = 1,117,837.26 × 212,622
  4. Step 4: Simplify right side
    745,099.08x = 237,676,793,895.72
  5. Step 5: Solve for x
    x = 237,676,793,895.72/745,099.08
  6. Step 6: Final answer
    x = 318,986.83

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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.