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Finding the Fourth Proportional to 406,271.43, 609,405.60 and 121,960.71

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Solution

The fourth proportional to 406,271.43, 609,405.60 and 121,960.71 is: 182,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,271.43 : 609,405.60 = 121,960.71 : x
  2. Step 2: Convert to fraction form
    406,271.43/609,405.60 = 121,960.71/x
  3. Step 3: Cross multiply
    406,271.43x = 609,405.60 × 121,960.71
  4. Step 4: Simplify right side
    406,271.43x = 74,323,539,653.98
  5. Step 5: Solve for x
    x = 74,323,539,653.98/406,271.43
  6. Step 6: Final answer
    x = 182,940.60

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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.