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Finding the Fourth Proportional to 545,301.65, 752,426.52 and 303,578.07

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Solution

The fourth proportional to 545,301.65, 752,426.52 and 303,578.07 is: 418,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,301.65 : 752,426.52 = 303,578.07 : x
  2. Step 2: Convert to fraction form
    545,301.65/752,426.52 = 303,578.07/x
  3. Step 3: Cross multiply
    545,301.65x = 752,426.52 × 303,578.07
  4. Step 4: Simplify right side
    545,301.65x = 228,420,190,758.42
  5. Step 5: Solve for x
    x = 228,420,190,758.42/545,301.65
  6. Step 6: Final answer
    x = 418,887.77

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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.