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Finding the Fourth Proportional to 555,204.42, 766,184.54 and 300,555.60

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Solution

The fourth proportional to 555,204.42, 766,184.54 and 300,555.60 is: 414,768.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,204.42 : 766,184.54 = 300,555.60 : x
  2. Step 2: Convert to fraction form
    555,204.42/766,184.54 = 300,555.60/x
  3. Step 3: Cross multiply
    555,204.42x = 766,184.54 × 300,555.60
  4. Step 4: Simplify right side
    555,204.42x = 230,281,056,627.92
  5. Step 5: Solve for x
    x = 230,281,056,627.92/555,204.42
  6. Step 6: Final answer
    x = 414,768.06

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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.