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Finding the Fourth Proportional to 660,583.01, 911,548.88 and 366,240.59

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Solution

The fourth proportional to 660,583.01, 911,548.88 and 366,240.59 is: 505,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,583.01 : 911,548.88 = 366,240.59 : x
  2. Step 2: Convert to fraction form
    660,583.01/911,548.88 = 366,240.59/x
  3. Step 3: Cross multiply
    660,583.01x = 911,548.88 × 366,240.59
  4. Step 4: Simplify right side
    660,583.01x = 333,846,199,625.04
  5. Step 5: Solve for x
    x = 333,846,199,625.04/660,583.01
  6. Step 6: Final answer
    x = 505,381.15

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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.