Home / 666,987.69-1,000,331.79-306,812.63

Finding the Fourth Proportional to 666,987.69, 1,000,331.79 and 306,812.63

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Solution

The fourth proportional to 666,987.69, 1,000,331.79 and 306,812.63 is: 460,150.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,987.69 : 1,000,331.79 = 306,812.63 : x
  2. Step 2: Convert to fraction form
    666,987.69/1,000,331.79 = 306,812.63/x
  3. Step 3: Cross multiply
    666,987.69x = 1,000,331.79 × 306,812.63
  4. Step 4: Simplify right side
    666,987.69x = 306,914,422,360.85
  5. Step 5: Solve for x
    x = 306,914,422,360.85/666,987.69
  6. Step 6: Final answer
    x = 460,150.06

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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.