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Finding the Fourth Proportional to 671,765.26, 927,026.95 and 381,374.19

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Solution

The fourth proportional to 671,765.26, 927,026.95 and 381,374.19 is: 526,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,765.26 : 927,026.95 = 381,374.19 : x
  2. Step 2: Convert to fraction form
    671,765.26/927,026.95 = 381,374.19/x
  3. Step 3: Cross multiply
    671,765.26x = 927,026.95 × 381,374.19
  4. Step 4: Simplify right side
    671,765.26x = 353,544,152,164.42
  5. Step 5: Solve for x
    x = 353,544,152,164.42/671,765.26
  6. Step 6: Final answer
    x = 526,291.21

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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.