Home / 555,207.16-766,185.72-300,558.16

Finding the Fourth Proportional to 555,207.16, 766,185.72 and 300,558.16

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Solution

The fourth proportional to 555,207.16, 766,185.72 and 300,558.16 is: 414,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,207.16 : 766,185.72 = 300,558.16 : x
  2. Step 2: Convert to fraction form
    555,207.16/766,185.72 = 300,558.16/x
  3. Step 3: Cross multiply
    555,207.16x = 766,185.72 × 300,558.16
  4. Step 4: Simplify right side
    555,207.16x = 230,283,370,221.48
  5. Step 5: Solve for x
    x = 230,283,370,221.48/555,207.16
  6. Step 6: Final answer
    x = 414,770.17

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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.