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Finding the Fourth Proportional to 560,578.77, 773,623.86 and 315,647.76

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Solution

The fourth proportional to 560,578.77, 773,623.86 and 315,647.76 is: 435,608.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,578.77 : 773,623.86 = 315,647.76 : x
  2. Step 2: Convert to fraction form
    560,578.77/773,623.86 = 315,647.76/x
  3. Step 3: Cross multiply
    560,578.77x = 773,623.86 × 315,647.76
  4. Step 4: Simplify right side
    560,578.77x = 244,192,635,213.30
  5. Step 5: Solve for x
    x = 244,192,635,213.30/560,578.77
  6. Step 6: Final answer
    x = 435,608.07

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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.