Home / 1,177,431-1,766,189.43-419,328.24

Finding the Fourth Proportional to 1,177,431, 1,766,189.43 and 419,328.24

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Solution

The fourth proportional to 1,177,431, 1,766,189.43 and 419,328.24 is: 629,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,431 : 1,766,189.43 = 419,328.24 : x
  2. Step 2: Convert to fraction form
    1,177,431/1,766,189.43 = 419,328.24/x
  3. Step 3: Cross multiply
    1,177,431x = 1,766,189.43 × 419,328.24
  4. Step 4: Simplify right side
    1,177,431x = 740,613,105,188.50
  5. Step 5: Solve for x
    x = 740,613,105,188.50/1,177,431
  6. Step 6: Final answer
    x = 629,007.65

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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.