Home / 663,519.12-915,629.22-373,122.42

Finding the Fourth Proportional to 663,519.12, 915,629.22 and 373,122.42

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Solution

The fourth proportional to 663,519.12, 915,629.22 and 373,122.42 is: 514,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,519.12 : 915,629.22 = 373,122.42 : x
  2. Step 2: Convert to fraction form
    663,519.12/915,629.22 = 373,122.42/x
  3. Step 3: Cross multiply
    663,519.12x = 915,629.22 × 373,122.42
  4. Step 4: Simplify right side
    663,519.12x = 341,641,790,389.11
  5. Step 5: Solve for x
    x = 341,641,790,389.11/663,519.12
  6. Step 6: Final answer
    x = 514,893.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.