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Finding the Fourth Proportional to 550,913.58, 760,334.93 and 309,209.37

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Solution

The fourth proportional to 550,913.58, 760,334.93 and 309,209.37 is: 426,750.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,913.58 : 760,334.93 = 309,209.37 : x
  2. Step 2: Convert to fraction form
    550,913.58/760,334.93 = 309,209.37/x
  3. Step 3: Cross multiply
    550,913.58x = 760,334.93 × 309,209.37
  4. Step 4: Simplify right side
    550,913.58x = 235,102,687,002.20
  5. Step 5: Solve for x
    x = 235,102,687,002.20/550,913.58
  6. Step 6: Final answer
    x = 426,750.58

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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.