Home / 445,166.10-665,999.55-403,175.70

Finding the Fourth Proportional to 445,166.10, 665,999.55 and 403,175.70

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Solution

The fourth proportional to 445,166.10, 665,999.55 and 403,175.70 is: 603,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,166.10 : 665,999.55 = 403,175.70 : x
  2. Step 2: Convert to fraction form
    445,166.10/665,999.55 = 403,175.70/x
  3. Step 3: Cross multiply
    445,166.10x = 665,999.55 × 403,175.70
  4. Step 4: Simplify right side
    445,166.10x = 268,514,834,770.94
  5. Step 5: Solve for x
    x = 268,514,834,770.94/445,166.10
  6. Step 6: Final answer
    x = 603,178.98

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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.