Home / 662,204.56-913,872.26-390,283.88

Finding the Fourth Proportional to 662,204.56, 913,872.26 and 390,283.88

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Solution

The fourth proportional to 662,204.56, 913,872.26 and 390,283.88 is: 538,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,204.56 : 913,872.26 = 390,283.88 : x
  2. Step 2: Convert to fraction form
    662,204.56/913,872.26 = 390,283.88/x
  3. Step 3: Cross multiply
    662,204.56x = 913,872.26 × 390,283.88
  4. Step 4: Simplify right side
    662,204.56x = 356,669,611,457.17
  5. Step 5: Solve for x
    x = 356,669,611,457.17/662,204.56
  6. Step 6: Final answer
    x = 538,609.42

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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.