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Finding the Fourth Proportional to 528,930.07, 729,923.49 and 302,575.57

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Solution

The fourth proportional to 528,930.07, 729,923.49 and 302,575.57 is: 417,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,930.07 : 729,923.49 = 302,575.57 : x
  2. Step 2: Convert to fraction form
    528,930.07/729,923.49 = 302,575.57/x
  3. Step 3: Cross multiply
    528,930.07x = 729,923.49 × 302,575.57
  4. Step 4: Simplify right side
    528,930.07x = 220,857,014,218.33
  5. Step 5: Solve for x
    x = 220,857,014,218.33/528,930.07
  6. Step 6: Final answer
    x = 417,554.28

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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.