Home / 648,428.63-894,828.07-376,563.37

Finding the Fourth Proportional to 648,428.63, 894,828.07 and 376,563.37

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Solution

The fourth proportional to 648,428.63, 894,828.07 and 376,563.37 is: 519,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,428.63 : 894,828.07 = 376,563.37 : x
  2. Step 2: Convert to fraction form
    648,428.63/894,828.07 = 376,563.37/x
  3. Step 3: Cross multiply
    648,428.63x = 894,828.07 × 376,563.37
  4. Step 4: Simplify right side
    648,428.63x = 336,959,473,609.80
  5. Step 5: Solve for x
    x = 336,959,473,609.80/648,428.63
  6. Step 6: Final answer
    x = 519,655.45

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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.