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Finding the Fourth Proportional to 715,388, 1,071,449.04 and 341,673.44

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Solution

The fourth proportional to 715,388, 1,071,449.04 and 341,673.44 is: 511,730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,388 : 1,071,449.04 = 341,673.44 : x
  2. Step 2: Convert to fraction form
    715,388/1,071,449.04 = 341,673.44/x
  3. Step 3: Cross multiply
    715,388x = 1,071,449.04 × 341,673.44
  4. Step 4: Simplify right side
    715,388x = 366,085,679,281.50
  5. Step 5: Solve for x
    x = 366,085,679,281.50/715,388
  6. Step 6: Final answer
    x = 511,730.25

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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.