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Finding the Fourth Proportional to 708,796.67, 978,103.95 and 402,832.62

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Solution

The fourth proportional to 708,796.67, 978,103.95 and 402,832.62 is: 555,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,796.67 : 978,103.95 = 402,832.62 : x
  2. Step 2: Convert to fraction form
    708,796.67/978,103.95 = 402,832.62/x
  3. Step 3: Cross multiply
    708,796.67x = 978,103.95 × 402,832.62
  4. Step 4: Simplify right side
    708,796.67x = 394,012,176,810.85
  5. Step 5: Solve for x
    x = 394,012,176,810.85/708,796.67
  6. Step 6: Final answer
    x = 555,888.87

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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.