Home / 630,319.05-869,912.87-350,944.38

Finding the Fourth Proportional to 630,319.05, 869,912.87 and 350,944.38

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Solution

The fourth proportional to 630,319.05, 869,912.87 and 350,944.38 is: 484,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,319.05 : 869,912.87 = 350,944.38 : x
  2. Step 2: Convert to fraction form
    630,319.05/869,912.87 = 350,944.38/x
  3. Step 3: Cross multiply
    630,319.05x = 869,912.87 × 350,944.38
  4. Step 4: Simplify right side
    630,319.05x = 305,291,031,061.45
  5. Step 5: Solve for x
    x = 305,291,031,061.45/630,319.05
  6. Step 6: Final answer
    x = 484,343.65

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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.