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Finding the Fourth Proportional to 660,684.27, 911,808.23 and 370,345.15

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Solution

The fourth proportional to 660,684.27, 911,808.23 and 370,345.15 is: 511,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,684.27 : 911,808.23 = 370,345.15 : x
  2. Step 2: Convert to fraction form
    660,684.27/911,808.23 = 370,345.15/x
  3. Step 3: Cross multiply
    660,684.27x = 911,808.23 × 370,345.15
  4. Step 4: Simplify right side
    660,684.27x = 337,683,755,710.59
  5. Step 5: Solve for x
    x = 337,683,755,710.59/660,684.27
  6. Step 6: Final answer
    x = 511,112.15

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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.