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Finding the Fourth Proportional to 565,063.31, 779,801.43 and 306,940.19

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Solution

The fourth proportional to 565,063.31, 779,801.43 and 306,940.19 is: 423,585.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,063.31 : 779,801.43 = 306,940.19 : x
  2. Step 2: Convert to fraction form
    565,063.31/779,801.43 = 306,940.19/x
  3. Step 3: Cross multiply
    565,063.31x = 779,801.43 × 306,940.19
  4. Step 4: Simplify right side
    565,063.31x = 239,352,396,338.49
  5. Step 5: Solve for x
    x = 239,352,396,338.49/565,063.31
  6. Step 6: Final answer
    x = 423,585.09

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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.