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Finding the Fourth Proportional to 700,909.89, 967,254.89 and 378,619.92

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Solution

The fourth proportional to 700,909.89, 967,254.89 and 378,619.92 is: 522,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,909.89 : 967,254.89 = 378,619.92 : x
  2. Step 2: Convert to fraction form
    700,909.89/967,254.89 = 378,619.92/x
  3. Step 3: Cross multiply
    700,909.89x = 967,254.89 × 378,619.92
  4. Step 4: Simplify right side
    700,909.89x = 366,221,967,178.31
  5. Step 5: Solve for x
    x = 366,221,967,178.31/700,909.89
  6. Step 6: Final answer
    x = 522,495.08

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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.