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Finding the Fourth Proportional to 620,507.49, 929,900.10 and 282,722.60

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Solution

The fourth proportional to 620,507.49, 929,900.10 and 282,722.60 is: 423,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,507.49 : 929,900.10 = 282,722.60 : x
  2. Step 2: Convert to fraction form
    620,507.49/929,900.10 = 282,722.60/x
  3. Step 3: Cross multiply
    620,507.49x = 929,900.10 × 282,722.60
  4. Step 4: Simplify right side
    620,507.49x = 262,903,775,806.91
  5. Step 5: Solve for x
    x = 262,903,775,806.91/620,507.49
  6. Step 6: Final answer
    x = 423,691.55

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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.