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Finding the Fourth Proportional to 406,475.60, 609,713.40 and 110,987.60

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Solution

The fourth proportional to 406,475.60, 609,713.40 and 110,987.60 is: 166,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,475.60 : 609,713.40 = 110,987.60 : x
  2. Step 2: Convert to fraction form
    406,475.60/609,713.40 = 110,987.60/x
  3. Step 3: Cross multiply
    406,475.60x = 609,713.40 × 110,987.60
  4. Step 4: Simplify right side
    406,475.60x = 67,670,626,953.84
  5. Step 5: Solve for x
    x = 67,670,626,953.84/406,475.60
  6. Step 6: Final answer
    x = 166,481.40

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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.