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Finding the Fourth Proportional to 660,695.26, 911,823.27 and 370,355.97

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Solution

The fourth proportional to 660,695.26, 911,823.27 and 370,355.97 is: 511,127.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,695.26 : 911,823.27 = 370,355.97 : x
  2. Step 2: Convert to fraction form
    660,695.26/911,823.27 = 370,355.97/x
  3. Step 3: Cross multiply
    660,695.26x = 911,823.27 × 370,355.97
  4. Step 4: Simplify right side
    660,695.26x = 337,699,191,629.42
  5. Step 5: Solve for x
    x = 337,699,191,629.42/660,695.26
  6. Step 6: Final answer
    x = 511,127.01

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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.