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Finding the Fourth Proportional to 1,369,848.67, 1,890,393.44 and 758,027.18

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Solution

The fourth proportional to 1,369,848.67, 1,890,393.44 and 758,027.18 is: 1,046,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,848.67 : 1,890,393.44 = 758,027.18 : x
  2. Step 2: Convert to fraction form
    1,369,848.67/1,890,393.44 = 758,027.18/x
  3. Step 3: Cross multiply
    1,369,848.67x = 1,890,393.44 × 758,027.18
  4. Step 4: Simplify right side
    1,369,848.67x = 1,432,969,609,349.55
  5. Step 5: Solve for x
    x = 1,432,969,609,349.55/1,369,848.67
  6. Step 6: Final answer
    x = 1,046,078.77

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Why These Related Problems?

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