Home / 397,016.82-547,948.53-289,941.30

Finding the Fourth Proportional to 397,016.82, 547,948.53 and 289,941.30

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Solution

The fourth proportional to 397,016.82, 547,948.53 and 289,941.30 is: 400,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,016.82 : 547,948.53 = 289,941.30 : x
  2. Step 2: Convert to fraction form
    397,016.82/547,948.53 = 289,941.30/x
  3. Step 3: Cross multiply
    397,016.82x = 547,948.53 × 289,941.30
  4. Step 4: Simplify right side
    397,016.82x = 158,872,909,121.29
  5. Step 5: Solve for x
    x = 158,872,909,121.29/397,016.82
  6. Step 6: Final answer
    x = 400,166.70

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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.