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Finding the Fourth Proportional to 545,451.66, 817,608.72 and 305,213.35

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Solution

The fourth proportional to 545,451.66, 817,608.72 and 305,213.35 is: 457,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,451.66 : 817,608.72 = 305,213.35 : x
  2. Step 2: Convert to fraction form
    545,451.66/817,608.72 = 305,213.35/x
  3. Step 3: Cross multiply
    545,451.66x = 817,608.72 × 305,213.35
  4. Step 4: Simplify right side
    545,451.66x = 249,545,096,420.41
  5. Step 5: Solve for x
    x = 249,545,096,420.41/545,451.66
  6. Step 6: Final answer
    x = 457,501.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.