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Finding the Fourth Proportional to 671,531.34, 926,685.26 and 369,705.90

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Solution

The fourth proportional to 671,531.34, 926,685.26 and 369,705.90 is: 510,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,531.34 : 926,685.26 = 369,705.90 : x
  2. Step 2: Convert to fraction form
    671,531.34/926,685.26 = 369,705.90/x
  3. Step 3: Cross multiply
    671,531.34x = 926,685.26 × 369,705.90
  4. Step 4: Simplify right side
    671,531.34x = 342,601,008,065.03
  5. Step 5: Solve for x
    x = 342,601,008,065.03/671,531.34
  6. Step 6: Final answer
    x = 510,178.73

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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.