Home / 1,188,958.90-1,783,063.64-390,054.28

Finding the Fourth Proportional to 1,188,958.90, 1,783,063.64 and 390,054.28

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Solution

The fourth proportional to 1,188,958.90, 1,783,063.64 and 390,054.28 is: 584,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,958.90 : 1,783,063.64 = 390,054.28 : x
  2. Step 2: Convert to fraction form
    1,188,958.90/1,783,063.64 = 390,054.28/x
  3. Step 3: Cross multiply
    1,188,958.90x = 1,783,063.64 × 390,054.28
  4. Step 4: Simplify right side
    1,188,958.90x = 695,491,604,294.38
  5. Step 5: Solve for x
    x = 695,491,604,294.38/1,188,958.90
  6. Step 6: Final answer
    x = 584,958.49

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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.