Home / 1,188,958.89-1,783,063.65-390,054.27

Finding the Fourth Proportional to 1,188,958.89, 1,783,063.65 and 390,054.27

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Solution

The fourth proportional to 1,188,958.89, 1,783,063.65 and 390,054.27 is: 584,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,958.89 : 1,783,063.65 = 390,054.27 : x
  2. Step 2: Convert to fraction form
    1,188,958.89/1,783,063.65 = 390,054.27/x
  3. Step 3: Cross multiply
    1,188,958.89x = 1,783,063.65 × 390,054.27
  4. Step 4: Simplify right side
    1,188,958.89x = 695,491,590,364.29
  5. Step 5: Solve for x
    x = 695,491,590,364.29/1,188,958.89
  6. Step 6: Final answer
    x = 584,958.48

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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.