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Finding the Fourth Proportional to 704,478.87, 972,181.17 and 382,188.88

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Solution

The fourth proportional to 704,478.87, 972,181.17 and 382,188.88 is: 527,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,478.87 : 972,181.17 = 382,188.88 : x
  2. Step 2: Convert to fraction form
    704,478.87/972,181.17 = 382,188.88/x
  3. Step 3: Cross multiply
    704,478.87x = 972,181.17 × 382,188.88
  4. Step 4: Simplify right side
    704,478.87x = 371,556,833,734.62
  5. Step 5: Solve for x
    x = 371,556,833,734.62/704,478.87
  6. Step 6: Final answer
    x = 527,420.83

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1.5x scale

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.