Home / 912,647.70-1,369,165.95-281,625.30

Finding the Fourth Proportional to 912,647.70, 1,369,165.95 and 281,625.30

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Solution

The fourth proportional to 912,647.70, 1,369,165.95 and 281,625.30 is: 422,497.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,647.70 : 1,369,165.95 = 281,625.30 : x
  2. Step 2: Convert to fraction form
    912,647.70/1,369,165.95 = 281,625.30/x
  3. Step 3: Cross multiply
    912,647.70x = 1,369,165.95 × 281,625.30
  4. Step 4: Simplify right side
    912,647.70x = 385,591,771,418.54
  5. Step 5: Solve for x
    x = 385,591,771,418.54/912,647.70
  6. Step 6: Final answer
    x = 422,497.94

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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.