Home / 555,261.31-766,260.84-300,612.43

Finding the Fourth Proportional to 555,261.31, 766,260.84 and 300,612.43

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Solution

The fourth proportional to 555,261.31, 766,260.84 and 300,612.43 is: 414,845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,261.31 : 766,260.84 = 300,612.43 : x
  2. Step 2: Convert to fraction form
    555,261.31/766,260.84 = 300,612.43/x
  3. Step 3: Cross multiply
    555,261.31x = 766,260.84 × 300,612.43
  4. Step 4: Simplify right side
    555,261.31x = 230,347,533,126.24
  5. Step 5: Solve for x
    x = 230,347,533,126.24/555,261.31
  6. Step 6: Final answer
    x = 414,845.28

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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.