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Finding the Fourth Proportional to 438,466.60, 657,908.94 and 303,738.35

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Solution

The fourth proportional to 438,466.60, 657,908.94 and 303,738.35 is: 455,752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,466.60 : 657,908.94 = 303,738.35 : x
  2. Step 2: Convert to fraction form
    438,466.60/657,908.94 = 303,738.35/x
  3. Step 3: Cross multiply
    438,466.60x = 657,908.94 × 303,738.35
  4. Step 4: Simplify right side
    438,466.60x = 199,832,175,885.85
  5. Step 5: Solve for x
    x = 199,832,175,885.85/438,466.60
  6. Step 6: Final answer
    x = 455,752.34

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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.