Home / 578,766.10-867,857.55-342,181.30

Finding the Fourth Proportional to 578,766.10, 867,857.55 and 342,181.30

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Solution

The fourth proportional to 578,766.10, 867,857.55 and 342,181.30 is: 513,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,766.10 : 867,857.55 = 342,181.30 : x
  2. Step 2: Convert to fraction form
    578,766.10/867,857.55 = 342,181.30/x
  3. Step 3: Cross multiply
    578,766.10x = 867,857.55 × 342,181.30
  4. Step 4: Simplify right side
    578,766.10x = 296,964,624,673.82
  5. Step 5: Solve for x
    x = 296,964,624,673.82/578,766.10
  6. Step 6: Final answer
    x = 513,099.55

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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.