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Finding the Fourth Proportional to 518,730.04, 715,852.90 and 292,375.54

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Solution

The fourth proportional to 518,730.04, 715,852.90 and 292,375.54 is: 403,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,730.04 : 715,852.90 = 292,375.54 : x
  2. Step 2: Convert to fraction form
    518,730.04/715,852.90 = 292,375.54/x
  3. Step 3: Cross multiply
    518,730.04x = 715,852.90 × 292,375.54
  4. Step 4: Simplify right side
    518,730.04x = 209,297,878,198.07
  5. Step 5: Solve for x
    x = 209,297,878,198.07/518,730.04
  6. Step 6: Final answer
    x = 403,481.31

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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.