Home / 443,510.13-611,829.94-290,480.98

Finding the Fourth Proportional to 443,510.13, 611,829.94 and 290,480.98

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Solution

The fourth proportional to 443,510.13, 611,829.94 and 290,480.98 is: 400,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,510.13 : 611,829.94 = 290,480.98 : x
  2. Step 2: Convert to fraction form
    443,510.13/611,829.94 = 290,480.98/x
  3. Step 3: Cross multiply
    443,510.13x = 611,829.94 × 290,480.98
  4. Step 4: Simplify right side
    443,510.13x = 177,724,959,112.14
  5. Step 5: Solve for x
    x = 177,724,959,112.14/443,510.13
  6. Step 6: Final answer
    x = 400,723.56

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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.