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Finding the Fourth Proportional to 451,290.77, 675,410.32 and 439,146.59

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Solution

The fourth proportional to 451,290.77, 675,410.32 and 439,146.59 is: 657,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,290.77 : 675,410.32 = 439,146.59 : x
  2. Step 2: Convert to fraction form
    451,290.77/675,410.32 = 439,146.59/x
  3. Step 3: Cross multiply
    451,290.77x = 675,410.32 × 439,146.59
  4. Step 4: Simplify right side
    451,290.77x = 296,604,136,683.08
  5. Step 5: Solve for x
    x = 296,604,136,683.08/451,290.77
  6. Step 6: Final answer
    x = 657,235.11

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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.