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Finding the Fourth Proportional to 475,928.76, 657,464.94 and 380,309.88

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Solution

The fourth proportional to 475,928.76, 657,464.94 and 380,309.88 is: 525,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,928.76 : 657,464.94 = 380,309.88 : x
  2. Step 2: Convert to fraction form
    475,928.76/657,464.94 = 380,309.88/x
  3. Step 3: Cross multiply
    475,928.76x = 657,464.94 × 380,309.88
  4. Step 4: Simplify right side
    475,928.76x = 250,040,412,435.61
  5. Step 5: Solve for x
    x = 250,040,412,435.61/475,928.76
  6. Step 6: Final answer
    x = 525,373.61

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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.