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Finding the Fourth Proportional to 551,596.40, 826,647.18 and 285,543.70

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Solution

The fourth proportional to 551,596.40, 826,647.18 and 285,543.70 is: 427,928.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,596.40 : 826,647.18 = 285,543.70 : x
  2. Step 2: Convert to fraction form
    551,596.40/826,647.18 = 285,543.70/x
  3. Step 3: Cross multiply
    551,596.40x = 826,647.18 × 285,543.70
  4. Step 4: Simplify right side
    551,596.40x = 236,043,894,371.77
  5. Step 5: Solve for x
    x = 236,043,894,371.77/551,596.40
  6. Step 6: Final answer
    x = 427,928.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.