Home / 628,207.83-941,953.68-428,769.63

Finding the Fourth Proportional to 628,207.83, 941,953.68 and 428,769.63

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Solution

The fourth proportional to 628,207.83, 941,953.68 and 428,769.63 is: 642,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,207.83 : 941,953.68 = 428,769.63 : x
  2. Step 2: Convert to fraction form
    628,207.83/941,953.68 = 428,769.63/x
  3. Step 3: Cross multiply
    628,207.83x = 941,953.68 × 428,769.63
  4. Step 4: Simplify right side
    628,207.83x = 403,881,130,850.74
  5. Step 5: Solve for x
    x = 403,881,130,850.74/628,207.83
  6. Step 6: Final answer
    x = 642,910.06

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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.