Home / 578,768.10-867,860.55-342,183.30

Finding the Fourth Proportional to 578,768.10, 867,860.55 and 342,183.30

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Solution

The fourth proportional to 578,768.10, 867,860.55 and 342,183.30 is: 513,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,768.10 : 867,860.55 = 342,183.30 : x
  2. Step 2: Convert to fraction form
    578,768.10/867,860.55 = 342,183.30/x
  3. Step 3: Cross multiply
    578,768.10x = 867,860.55 × 342,183.30
  4. Step 4: Simplify right side
    578,768.10x = 296,967,386,938.82
  5. Step 5: Solve for x
    x = 296,967,386,938.82/578,768.10
  6. Step 6: Final answer
    x = 513,102.55

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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.