Home / 1,179,909.60-1,769,859.31-326,978.79

Finding the Fourth Proportional to 1,179,909.60, 1,769,859.31 and 326,978.79

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Solution

The fourth proportional to 1,179,909.60, 1,769,859.31 and 326,978.79 is: 490,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,909.60 : 1,769,859.31 = 326,978.79 : x
  2. Step 2: Convert to fraction form
    1,179,909.60/1,769,859.31 = 326,978.79/x
  3. Step 3: Cross multiply
    1,179,909.60x = 1,769,859.31 × 326,978.79
  4. Step 4: Simplify right side
    1,179,909.60x = 578,706,455,654.04
  5. Step 5: Solve for x
    x = 578,706,455,654.04/1,179,909.60
  6. Step 6: Final answer
    x = 490,466.77

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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.