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Finding the Fourth Proportional to 1,441,558, 1,989,019.36 and 860,667.94

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Solution

The fourth proportional to 1,441,558, 1,989,019.36 and 860,667.94 is: 1,187,524.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,558 : 1,989,019.36 = 860,667.94 : x
  2. Step 2: Convert to fraction form
    1,441,558/1,989,019.36 = 860,667.94/x
  3. Step 3: Cross multiply
    1,441,558x = 1,989,019.36 × 860,667.94
  4. Step 4: Simplify right side
    1,441,558x = 1,711,885,195,191.32
  5. Step 5: Solve for x
    x = 1,711,885,195,191.32/1,441,558
  6. Step 6: Final answer
    x = 1,187,524.33

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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.