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Finding the Fourth Proportional to 385,774.35, 578,450.11 and 119,460.93

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Solution

The fourth proportional to 385,774.35, 578,450.11 and 119,460.93 is: 179,125.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,774.35 : 578,450.11 = 119,460.93 : x
  2. Step 2: Convert to fraction form
    385,774.35/578,450.11 = 119,460.93/x
  3. Step 3: Cross multiply
    385,774.35x = 578,450.11 × 119,460.93
  4. Step 4: Simplify right side
    385,774.35x = 69,102,188,099.20
  5. Step 5: Solve for x
    x = 69,102,188,099.20/385,774.35
  6. Step 6: Final answer
    x = 179,125.93

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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.