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Finding the Fourth Proportional to 406,612.40, 561,323.40 and 270,726.80

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Solution

The fourth proportional to 406,612.40, 561,323.40 and 270,726.80 is: 373,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,612.40 : 561,323.40 = 270,726.80 : x
  2. Step 2: Convert to fraction form
    406,612.40/561,323.40 = 270,726.80/x
  3. Step 3: Cross multiply
    406,612.40x = 561,323.40 × 270,726.80
  4. Step 4: Simplify right side
    406,612.40x = 151,965,287,847.12
  5. Step 5: Solve for x
    x = 151,965,287,847.12/406,612.40
  6. Step 6: Final answer
    x = 373,735.01

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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.