Home / 989,101.80-1,483,636.57-315,174.04

Finding the Fourth Proportional to 989,101.80, 1,483,636.57 and 315,174.04

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Solution

The fourth proportional to 989,101.80, 1,483,636.57 and 315,174.04 is: 472,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,101.80 : 1,483,636.57 = 315,174.04 : x
  2. Step 2: Convert to fraction form
    989,101.80/1,483,636.57 = 315,174.04/x
  3. Step 3: Cross multiply
    989,101.80x = 1,483,636.57 × 315,174.04
  4. Step 4: Simplify right side
    989,101.80x = 467,603,727,161.62
  5. Step 5: Solve for x
    x = 467,603,727,161.62/989,101.80
  6. Step 6: Final answer
    x = 472,755.92

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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.