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Finding the Fourth Proportional to 545,429.35, 817,028.66 and 444,586.78

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Solution

The fourth proportional to 545,429.35, 817,028.66 and 444,586.78 is: 665,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,429.35 : 817,028.66 = 444,586.78 : x
  2. Step 2: Convert to fraction form
    545,429.35/817,028.66 = 444,586.78/x
  3. Step 3: Cross multiply
    545,429.35x = 817,028.66 × 444,586.78
  4. Step 4: Simplify right side
    545,429.35x = 363,240,140,749.07
  5. Step 5: Solve for x
    x = 363,240,140,749.07/545,429.35
  6. Step 6: Final answer
    x = 665,971.02

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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.