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Finding the Fourth Proportional to 406,461.30, 561,009.90 and 270,500.98

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Solution

The fourth proportional to 406,461.30, 561,009.90 and 270,500.98 is: 373,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,461.30 : 561,009.90 = 270,500.98 : x
  2. Step 2: Convert to fraction form
    406,461.30/561,009.90 = 270,500.98/x
  3. Step 3: Cross multiply
    406,461.30x = 561,009.90 × 270,500.98
  4. Step 4: Simplify right side
    406,461.30x = 151,753,727,739.70
  5. Step 5: Solve for x
    x = 151,753,727,739.70/406,461.30
  6. Step 6: Final answer
    x = 373,353.45

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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.