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Finding the Fourth Proportional to 891,662.95, 1,337,595.88 and 323,311.74

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Solution

The fourth proportional to 891,662.95, 1,337,595.88 and 323,311.74 is: 485,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,662.95 : 1,337,595.88 = 323,311.74 : x
  2. Step 2: Convert to fraction form
    891,662.95/1,337,595.88 = 323,311.74/x
  3. Step 3: Cross multiply
    891,662.95x = 1,337,595.88 × 323,311.74
  4. Step 4: Simplify right side
    891,662.95x = 432,460,443,883.37
  5. Step 5: Solve for x
    x = 432,460,443,883.37/891,662.95
  6. Step 6: Final answer
    x = 485,004.39

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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.