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Finding the Fourth Proportional to 397,001.82, 547,927.83 and 289,926.30

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Solution

The fourth proportional to 397,001.82, 547,927.83 and 289,926.30 is: 400,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,001.82 : 547,927.83 = 289,926.30 : x
  2. Step 2: Convert to fraction form
    397,001.82/547,927.83 = 289,926.30/x
  3. Step 3: Cross multiply
    397,001.82x = 547,927.83 × 289,926.30
  4. Step 4: Simplify right side
    397,001.82x = 158,858,688,418.93
  5. Step 5: Solve for x
    x = 158,858,688,418.93/397,001.82
  6. Step 6: Final answer
    x = 400,146.00

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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.