Home / 989,100.06-1,483,633.98-315,172.26

Finding the Fourth Proportional to 989,100.06, 1,483,633.98 and 315,172.26

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Solution

The fourth proportional to 989,100.06, 1,483,633.98 and 315,172.26 is: 472,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,100.06 : 1,483,633.98 = 315,172.26 : x
  2. Step 2: Convert to fraction form
    989,100.06/1,483,633.98 = 315,172.26/x
  3. Step 3: Cross multiply
    989,100.06x = 1,483,633.98 × 315,172.26
  4. Step 4: Simplify right side
    989,100.06x = 467,600,274,489.40
  5. Step 5: Solve for x
    x = 467,600,274,489.40/989,100.06
  6. Step 6: Final answer
    x = 472,753.26

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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.