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Finding the Fourth Proportional to 515,214, 710,995.32 and 300,363.12

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Solution

The fourth proportional to 515,214, 710,995.32 and 300,363.12 is: 414,501.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,214 : 710,995.32 = 300,363.12 : x
  2. Step 2: Convert to fraction form
    515,214/710,995.32 = 300,363.12/x
  3. Step 3: Cross multiply
    515,214x = 710,995.32 × 300,363.12
  4. Step 4: Simplify right side
    515,214x = 213,556,772,620.60
  5. Step 5: Solve for x
    x = 213,556,772,620.60/515,214
  6. Step 6: Final answer
    x = 414,501.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.