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Finding the Fourth Proportional to 665,334, 918,183.60 and 363,547.44

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Solution

The fourth proportional to 665,334, 918,183.60 and 363,547.44 is: 501,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,334 : 918,183.60 = 363,547.44 : x
  2. Step 2: Convert to fraction form
    665,334/918,183.60 = 363,547.44/x
  3. Step 3: Cross multiply
    665,334x = 918,183.60 × 363,547.44
  4. Step 4: Simplify right side
    665,334x = 333,803,297,229.98
  5. Step 5: Solve for x
    x = 333,803,297,229.98/665,334
  6. Step 6: Final answer
    x = 501,707.86

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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.