Home / 648,213.81-894,428.05-361,733.20

Finding the Fourth Proportional to 648,213.81, 894,428.05 and 361,733.20

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Solution

The fourth proportional to 648,213.81, 894,428.05 and 361,733.20 is: 499,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,213.81 : 894,428.05 = 361,733.20 : x
  2. Step 2: Convert to fraction form
    648,213.81/894,428.05 = 361,733.20/x
  3. Step 3: Cross multiply
    648,213.81x = 894,428.05 × 361,733.20
  4. Step 4: Simplify right side
    648,213.81x = 323,544,320,696.26
  5. Step 5: Solve for x
    x = 323,544,320,696.26/648,213.81
  6. Step 6: Final answer
    x = 499,132.10

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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.