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Finding the Fourth Proportional to 555,003.10, 766,052.30 and 313,427.08

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Solution

The fourth proportional to 555,003.10, 766,052.30 and 313,427.08 is: 432,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,003.10 : 766,052.30 = 313,427.08 : x
  2. Step 2: Convert to fraction form
    555,003.10/766,052.30 = 313,427.08/x
  3. Step 3: Cross multiply
    555,003.10x = 766,052.30 × 313,427.08
  4. Step 4: Simplify right side
    555,003.10x = 240,101,535,516.28
  5. Step 5: Solve for x
    x = 240,101,535,516.28/555,003.10
  6. Step 6: Final answer
    x = 432,612.96

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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.