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Finding the Fourth Proportional to 660,683.27, 911,806.85 and 370,344.15

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Solution

The fourth proportional to 660,683.27, 911,806.85 and 370,344.15 is: 511,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,683.27 : 911,806.85 = 370,344.15 : x
  2. Step 2: Convert to fraction form
    660,683.27/911,806.85 = 370,344.15/x
  3. Step 3: Cross multiply
    660,683.27x = 911,806.85 × 370,344.15
  4. Step 4: Simplify right side
    660,683.27x = 337,682,333,753.29
  5. Step 5: Solve for x
    x = 337,682,333,753.29/660,683.27
  6. Step 6: Final answer
    x = 511,110.77

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1.5x scale

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.