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Finding the Fourth Proportional to 545,435.85, 752,723.64 and 303,703.10

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Solution

The fourth proportional to 545,435.85, 752,723.64 and 303,703.10 is: 419,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,435.85 : 752,723.64 = 303,703.10 : x
  2. Step 2: Convert to fraction form
    545,435.85/752,723.64 = 303,703.10/x
  3. Step 3: Cross multiply
    545,435.85x = 752,723.64 × 303,703.10
  4. Step 4: Simplify right side
    545,435.85x = 228,604,502,911.28
  5. Step 5: Solve for x
    x = 228,604,502,911.28/545,435.85
  6. Step 6: Final answer
    x = 419,122.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.