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Finding the Fourth Proportional to 518,551.66, 715,575.62 and 292,211.74

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Solution

The fourth proportional to 518,551.66, 715,575.62 and 292,211.74 is: 403,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,551.66 : 715,575.62 = 292,211.74 : x
  2. Step 2: Convert to fraction form
    518,551.66/715,575.62 = 292,211.74/x
  3. Step 3: Cross multiply
    518,551.66x = 715,575.62 × 292,211.74
  4. Step 4: Simplify right side
    518,551.66x = 209,099,597,021.78
  5. Step 5: Solve for x
    x = 209,099,597,021.78/518,551.66
  6. Step 6: Final answer
    x = 403,237.74

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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.