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Finding the Fourth Proportional to 406,480.70, 561,036.66 and 270,520.40

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Solution

The fourth proportional to 406,480.70, 561,036.66 and 270,520.40 is: 373,380.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,480.70 : 561,036.66 = 270,520.40 : x
  2. Step 2: Convert to fraction form
    406,480.70/561,036.66 = 270,520.40/x
  3. Step 3: Cross multiply
    406,480.70x = 561,036.66 × 270,520.40
  4. Step 4: Simplify right side
    406,480.70x = 151,771,861,677.86
  5. Step 5: Solve for x
    x = 151,771,861,677.86/406,480.70
  6. Step 6: Final answer
    x = 373,380.24

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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.