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Finding the Fourth Proportional to 611,952.85, 844,223.23 and 407,804.90

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Solution

The fourth proportional to 611,952.85, 844,223.23 and 407,804.90 is: 562,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,952.85 : 844,223.23 = 407,804.90 : x
  2. Step 2: Convert to fraction form
    611,952.85/844,223.23 = 407,804.90/x
  3. Step 3: Cross multiply
    611,952.85x = 844,223.23 × 407,804.90
  4. Step 4: Simplify right side
    611,952.85x = 344,278,370,978.87
  5. Step 5: Solve for x
    x = 344,278,370,978.87/611,952.85
  6. Step 6: Final answer
    x = 562,589.70

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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.