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Finding the Fourth Proportional to 606,486.20, 909,000.30 and 251,317.40

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Solution

The fourth proportional to 606,486.20, 909,000.30 and 251,317.40 is: 376,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,486.20 : 909,000.30 = 251,317.40 : x
  2. Step 2: Convert to fraction form
    606,486.20/909,000.30 = 251,317.40/x
  3. Step 3: Cross multiply
    606,486.20x = 909,000.30 × 251,317.40
  4. Step 4: Simplify right side
    606,486.20x = 228,447,591,995.22
  5. Step 5: Solve for x
    x = 228,447,591,995.22/606,486.20
  6. Step 6: Final answer
    x = 376,674.01

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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.