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Finding the Fourth Proportional to 1,303.95, 1,955.15 and 572.73

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Solution

The fourth proportional to 1,303.95, 1,955.15 and 572.73 is: 858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.95 : 1,955.15 = 572.73 : x
  2. Step 2: Convert to fraction form
    1,303.95/1,955.15 = 572.73/x
  3. Step 3: Cross multiply
    1,303.95x = 1,955.15 × 572.73
  4. Step 4: Simplify right side
    1,303.95x = 1,119,773.06
  5. Step 5: Solve for x
    x = 1,119,773.06/1,303.95
  6. Step 6: Final answer
    x = 858.75

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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.