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Finding the Fourth Proportional to 606,331.60, 909,497.40 and 206,985.40

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Solution

The fourth proportional to 606,331.60, 909,497.40 and 206,985.40 is: 310,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,331.60 : 909,497.40 = 206,985.40 : x
  2. Step 2: Convert to fraction form
    606,331.60/909,497.40 = 206,985.40/x
  3. Step 3: Cross multiply
    606,331.60x = 909,497.40 × 206,985.40
  4. Step 4: Simplify right side
    606,331.60x = 188,252,683,137.96
  5. Step 5: Solve for x
    x = 188,252,683,137.96/606,331.60
  6. Step 6: Final answer
    x = 310,478.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.