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Finding the Fourth Proportional to 565,133.49, 779,433.17 and 371,739.78

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Solution

The fourth proportional to 565,133.49, 779,433.17 and 371,739.78 is: 512,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,133.49 : 779,433.17 = 371,739.78 : x
  2. Step 2: Convert to fraction form
    565,133.49/779,433.17 = 371,739.78/x
  3. Step 3: Cross multiply
    565,133.49x = 779,433.17 × 371,739.78
  4. Step 4: Simplify right side
    565,133.49x = 289,746,313,281.80
  5. Step 5: Solve for x
    x = 289,746,313,281.80/565,133.49
  6. Step 6: Final answer
    x = 512,704.20

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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.