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Finding the Fourth Proportional to 500,998.93, 691,452.38 and 317,254.26

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Solution

The fourth proportional to 500,998.93, 691,452.38 and 317,254.26 is: 437,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,998.93 : 691,452.38 = 317,254.26 : x
  2. Step 2: Convert to fraction form
    500,998.93/691,452.38 = 317,254.26/x
  3. Step 3: Cross multiply
    500,998.93x = 691,452.38 × 317,254.26
  4. Step 4: Simplify right side
    500,998.93x = 219,366,216,528.22
  5. Step 5: Solve for x
    x = 219,366,216,528.22/500,998.93
  6. Step 6: Final answer
    x = 437,857.66

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1.5x scale

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.