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Finding the Fourth Proportional to 406,924.80, 609,220.80 and 395,260.80

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Solution

The fourth proportional to 406,924.80, 609,220.80 and 395,260.80 is: 591,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,924.80 : 609,220.80 = 395,260.80 : x
  2. Step 2: Convert to fraction form
    406,924.80/609,220.80 = 395,260.80/x
  3. Step 3: Cross multiply
    406,924.80x = 609,220.80 × 395,260.80
  4. Step 4: Simplify right side
    406,924.80x = 240,801,100,784.64
  5. Step 5: Solve for x
    x = 240,801,100,784.64/406,924.80
  6. Step 6: Final answer
    x = 591,758.23

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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.