Home / 1,225,035.09-1,690,577.73-681,193.80

Finding the Fourth Proportional to 1,225,035.09, 1,690,577.73 and 681,193.80

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Solution

The fourth proportional to 1,225,035.09, 1,690,577.73 and 681,193.80 is: 940,063.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,035.09 : 1,690,577.73 = 681,193.80 : x
  2. Step 2: Convert to fraction form
    1,225,035.09/1,690,577.73 = 681,193.80/x
  3. Step 3: Cross multiply
    1,225,035.09x = 1,690,577.73 × 681,193.80
  4. Step 4: Simplify right side
    1,225,035.09x = 1,151,611,068,094.07
  5. Step 5: Solve for x
    x = 1,151,611,068,094.07/1,225,035.09
  6. Step 6: Final answer
    x = 940,063.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.