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Finding the Fourth Proportional to 547,101.64, 755,126.23 and 320,820.04

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Solution

The fourth proportional to 547,101.64, 755,126.23 and 320,820.04 is: 442,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,101.64 : 755,126.23 = 320,820.04 : x
  2. Step 2: Convert to fraction form
    547,101.64/755,126.23 = 320,820.04/x
  3. Step 3: Cross multiply
    547,101.64x = 755,126.23 × 320,820.04
  4. Step 4: Simplify right side
    547,101.64x = 242,259,627,313.65
  5. Step 5: Solve for x
    x = 242,259,627,313.65/547,101.64
  6. Step 6: Final answer
    x = 442,805.52

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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.