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Finding the Fourth Proportional to 690,396.06, 952,518.24 and 403,713.21

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Solution

The fourth proportional to 690,396.06, 952,518.24 and 403,713.21 is: 556,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,396.06 : 952,518.24 = 403,713.21 : x
  2. Step 2: Convert to fraction form
    690,396.06/952,518.24 = 403,713.21/x
  3. Step 3: Cross multiply
    690,396.06x = 952,518.24 × 403,713.21
  4. Step 4: Simplify right side
    690,396.06x = 384,544,196,253.95
  5. Step 5: Solve for x
    x = 384,544,196,253.95/690,396.06
  6. Step 6: Final answer
    x = 556,990.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.