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Finding the Fourth Proportional to 555,013.32, 765,945.96 and 337,223.64

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Solution

The fourth proportional to 555,013.32, 765,945.96 and 337,223.64 is: 465,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,013.32 : 765,945.96 = 337,223.64 : x
  2. Step 2: Convert to fraction form
    555,013.32/765,945.96 = 337,223.64/x
  3. Step 3: Cross multiply
    555,013.32x = 765,945.96 × 337,223.64
  4. Step 4: Simplify right side
    555,013.32x = 258,295,084,674.49
  5. Step 5: Solve for x
    x = 258,295,084,674.49/555,013.32
  6. Step 6: Final answer
    x = 465,385.38

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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.