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Finding the Fourth Proportional to 555,087.92, 766,022.16 and 300,439.04

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Solution

The fourth proportional to 555,087.92, 766,022.16 and 300,439.04 is: 414,606.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,087.92 : 766,022.16 = 300,439.04 : x
  2. Step 2: Convert to fraction form
    555,087.92/766,022.16 = 300,439.04/x
  3. Step 3: Cross multiply
    555,087.92x = 766,022.16 × 300,439.04
  4. Step 4: Simplify right side
    555,087.92x = 230,142,962,369.13
  5. Step 5: Solve for x
    x = 230,142,962,369.13/555,087.92
  6. Step 6: Final answer
    x = 414,606.32

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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.