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Finding the Fourth Proportional to 438,466.10, 657,908.19 and 303,737.85

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Solution

The fourth proportional to 438,466.10, 657,908.19 and 303,737.85 is: 455,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,466.10 : 657,908.19 = 303,737.85 : x
  2. Step 2: Convert to fraction form
    438,466.10/657,908.19 = 303,737.85/x
  3. Step 3: Cross multiply
    438,466.10x = 657,908.19 × 303,737.85
  4. Step 4: Simplify right side
    438,466.10x = 199,831,619,127.99
  5. Step 5: Solve for x
    x = 199,831,619,127.99/438,466.10
  6. Step 6: Final answer
    x = 455,751.59

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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.