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Finding the Fourth Proportional to 545,856.96, 753,338 and 304,178.88

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Solution

The fourth proportional to 545,856.96, 753,338 and 304,178.88 is: 419,797.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,856.96 : 753,338 = 304,178.88 : x
  2. Step 2: Convert to fraction form
    545,856.96/753,338 = 304,178.88/x
  3. Step 3: Cross multiply
    545,856.96x = 753,338 × 304,178.88
  4. Step 4: Simplify right side
    545,856.96x = 229,149,509,101.44
  5. Step 5: Solve for x
    x = 229,149,509,101.44/545,856.96
  6. Step 6: Final answer
    x = 419,797.72

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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.