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Finding the Fourth Proportional to 565,134.49, 779,434.54 and 371,740.78

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Solution

The fourth proportional to 565,134.49, 779,434.54 and 371,740.78 is: 512,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,134.49 : 779,434.54 = 371,740.78 : x
  2. Step 2: Convert to fraction form
    565,134.49/779,434.54 = 371,740.78/x
  3. Step 3: Cross multiply
    565,134.49x = 779,434.54 × 371,740.78
  4. Step 4: Simplify right side
    565,134.49x = 289,747,603,858.54
  5. Step 5: Solve for x
    x = 289,747,603,858.54/565,134.49
  6. Step 6: Final answer
    x = 512,705.58

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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.