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Finding the Fourth Proportional to 637,644.67, 955,417.22 and 445,538.59

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Solution

The fourth proportional to 637,644.67, 955,417.22 and 445,538.59 is: 667,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,644.67 : 955,417.22 = 445,538.59 : x
  2. Step 2: Convert to fraction form
    637,644.67/955,417.22 = 445,538.59/x
  3. Step 3: Cross multiply
    637,644.67x = 955,417.22 × 445,538.59
  4. Step 4: Simplify right side
    637,644.67x = 425,675,238,115.05
  5. Step 5: Solve for x
    x = 425,675,238,115.05/637,644.67
  6. Step 6: Final answer
    x = 667,574.37

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1.5x scale

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.