Home / 448,940.40-674,188.20-434,943.60

Finding the Fourth Proportional to 448,940.40, 674,188.20 and 434,943.60

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Solution

The fourth proportional to 448,940.40, 674,188.20 and 434,943.60 is: 653,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,940.40 : 674,188.20 = 434,943.60 : x
  2. Step 2: Convert to fraction form
    448,940.40/674,188.20 = 434,943.60/x
  3. Step 3: Cross multiply
    448,940.40x = 674,188.20 × 434,943.60
  4. Step 4: Simplify right side
    448,940.40x = 293,233,842,785.52
  5. Step 5: Solve for x
    x = 293,233,842,785.52/448,940.40
  6. Step 6: Final answer
    x = 653,168.76

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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.