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Finding the Fourth Proportional to 721,295.56, 1,082,041.74 and 300,473

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Solution

The fourth proportional to 721,295.56, 1,082,041.74 and 300,473 is: 450,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,295.56 : 1,082,041.74 = 300,473 : x
  2. Step 2: Convert to fraction form
    721,295.56/1,082,041.74 = 300,473/x
  3. Step 3: Cross multiply
    721,295.56x = 1,082,041.74 × 300,473
  4. Step 4: Simplify right side
    721,295.56x = 325,124,327,743.02
  5. Step 5: Solve for x
    x = 325,124,327,743.02/721,295.56
  6. Step 6: Final answer
    x = 450,750.49

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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.