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Finding the Fourth Proportional to 560,788.25, 773,891.03 and 306,142.07

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Solution

The fourth proportional to 560,788.25, 773,891.03 and 306,142.07 is: 422,477.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,788.25 : 773,891.03 = 306,142.07 : x
  2. Step 2: Convert to fraction form
    560,788.25/773,891.03 = 306,142.07/x
  3. Step 3: Cross multiply
    560,788.25x = 773,891.03 × 306,142.07
  4. Step 4: Simplify right side
    560,788.25x = 236,920,601,878.63
  5. Step 5: Solve for x
    x = 236,920,601,878.63/560,788.25
  6. Step 6: Final answer
    x = 422,477.83

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1.5x scale

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.