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Finding the Fourth Proportional to 1,320,325.96, 1,823,166.76 and 837,747.40

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Solution

The fourth proportional to 1,320,325.96, 1,823,166.76 and 837,747.40 is: 1,156,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,325.96 : 1,823,166.76 = 837,747.40 : x
  2. Step 2: Convert to fraction form
    1,320,325.96/1,823,166.76 = 837,747.40/x
  3. Step 3: Cross multiply
    1,320,325.96x = 1,823,166.76 × 837,747.40
  4. Step 4: Simplify right side
    1,320,325.96x = 1,527,353,212,956.42
  5. Step 5: Solve for x
    x = 1,527,353,212,956.42/1,320,325.96
  6. Step 6: Final answer
    x = 1,156,800.11

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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.