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Finding the Fourth Proportional to 565,133.43, 779,884.81 and 307,010.54

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Solution

The fourth proportional to 565,133.43, 779,884.81 and 307,010.54 is: 423,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,133.43 : 779,884.81 = 307,010.54 : x
  2. Step 2: Convert to fraction form
    565,133.43/779,884.81 = 307,010.54/x
  3. Step 3: Cross multiply
    565,133.43x = 779,884.81 × 307,010.54
  4. Step 4: Simplify right side
    565,133.43x = 239,432,856,741.37
  5. Step 5: Solve for x
    x = 239,432,856,741.37/565,133.43
  6. Step 6: Final answer
    x = 423,674.91

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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.