Home / 554,476.20-765,181.74-306,126.15

Finding the Fourth Proportional to 554,476.20, 765,181.74 and 306,126.15

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Solution

The fourth proportional to 554,476.20, 765,181.74 and 306,126.15 is: 422,456.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,476.20 : 765,181.74 = 306,126.15 : x
  2. Step 2: Convert to fraction form
    554,476.20/765,181.74 = 306,126.15/x
  3. Step 3: Cross multiply
    554,476.20x = 765,181.74 × 306,126.15
  4. Step 4: Simplify right side
    554,476.20x = 234,242,140,116.50
  5. Step 5: Solve for x
    x = 234,242,140,116.50/554,476.20
  6. Step 6: Final answer
    x = 422,456.62

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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.