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Finding the Fourth Proportional to 638,767.44, 956,158.26 and 470,477.80

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Solution

The fourth proportional to 638,767.44, 956,158.26 and 470,477.80 is: 704,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,767.44 : 956,158.26 = 470,477.80 : x
  2. Step 2: Convert to fraction form
    638,767.44/956,158.26 = 470,477.80/x
  3. Step 3: Cross multiply
    638,767.44x = 956,158.26 × 470,477.80
  4. Step 4: Simplify right side
    638,767.44x = 449,851,234,616.63
  5. Step 5: Solve for x
    x = 449,851,234,616.63/638,767.44
  6. Step 6: Final answer
    x = 704,248.85

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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.