Home / 478,982.18-660,968.24-297,689.46

Finding the Fourth Proportional to 478,982.18, 660,968.24 and 297,689.46

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Solution

The fourth proportional to 478,982.18, 660,968.24 and 297,689.46 is: 410,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,982.18 : 660,968.24 = 297,689.46 : x
  2. Step 2: Convert to fraction form
    478,982.18/660,968.24 = 297,689.46/x
  3. Step 3: Cross multiply
    478,982.18x = 660,968.24 × 297,689.46
  4. Step 4: Simplify right side
    478,982.18x = 196,763,278,442.75
  5. Step 5: Solve for x
    x = 196,763,278,442.75/478,982.18
  6. Step 6: Final answer
    x = 410,794.57

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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.