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Finding the Fourth Proportional to 565,081.13, 779,808.25 and 306,955.73

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Solution

The fourth proportional to 565,081.13, 779,808.25 and 306,955.73 is: 423,596.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,081.13 : 779,808.25 = 306,955.73 : x
  2. Step 2: Convert to fraction form
    565,081.13/779,808.25 = 306,955.73/x
  3. Step 3: Cross multiply
    565,081.13x = 779,808.25 × 306,955.73
  4. Step 4: Simplify right side
    565,081.13x = 239,366,610,638.77
  5. Step 5: Solve for x
    x = 239,366,610,638.77/565,081.13
  6. Step 6: Final answer
    x = 423,596.89

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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.