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Finding the Fourth Proportional to 1,573.30, 2,359.94 and 419.05

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Solution

The fourth proportional to 1,573.30, 2,359.94 and 419.05 is: 628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.30 : 2,359.94 = 419.05 : x
  2. Step 2: Convert to fraction form
    1,573.30/2,359.94 = 419.05/x
  3. Step 3: Cross multiply
    1,573.30x = 2,359.94 × 419.05
  4. Step 4: Simplify right side
    1,573.30x = 988,937.71
  5. Step 5: Solve for x
    x = 988,937.71/1,573.30
  6. Step 6: Final answer
    x = 628.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.