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Finding the Fourth Proportional to 496,482.84, 685,147.68 and 270,128.34

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Solution

The fourth proportional to 496,482.84, 685,147.68 and 270,128.34 is: 372,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,482.84 : 685,147.68 = 270,128.34 : x
  2. Step 2: Convert to fraction form
    496,482.84/685,147.68 = 270,128.34/x
  3. Step 3: Cross multiply
    496,482.84x = 685,147.68 × 270,128.34
  4. Step 4: Simplify right side
    496,482.84x = 185,077,805,453.25
  5. Step 5: Solve for x
    x = 185,077,805,453.25/496,482.84
  6. Step 6: Final answer
    x = 372,777.85

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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.