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Finding the Fourth Proportional to 663,967.20, 994,550.40 and 450,865.92

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Solution

The fourth proportional to 663,967.20, 994,550.40 and 450,865.92 is: 675,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,967.20 : 994,550.40 = 450,865.92 : x
  2. Step 2: Convert to fraction form
    663,967.20/994,550.40 = 450,865.92/x
  3. Step 3: Cross multiply
    663,967.20x = 994,550.40 × 450,865.92
  4. Step 4: Simplify right side
    663,967.20x = 448,408,881,082.37
  5. Step 5: Solve for x
    x = 448,408,881,082.37/663,967.20
  6. Step 6: Final answer
    x = 675,347.94

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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.