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Finding the Fourth Proportional to 403,272.10, 604,908.15 and 270,561.70

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Solution

The fourth proportional to 403,272.10, 604,908.15 and 270,561.70 is: 405,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,272.10 : 604,908.15 = 270,561.70 : x
  2. Step 2: Convert to fraction form
    403,272.10/604,908.15 = 270,561.70/x
  3. Step 3: Cross multiply
    403,272.10x = 604,908.15 × 270,561.70
  4. Step 4: Simplify right side
    403,272.10x = 163,664,977,407.86
  5. Step 5: Solve for x
    x = 163,664,977,407.86/403,272.10
  6. Step 6: Final answer
    x = 405,842.55

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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.