Home / 1,231,875-1,699,819.56-687,941.28

Finding the Fourth Proportional to 1,231,875, 1,699,819.56 and 687,941.28

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Solution

The fourth proportional to 1,231,875, 1,699,819.56 and 687,941.28 is: 949,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,875 : 1,699,819.56 = 687,941.28 : x
  2. Step 2: Convert to fraction form
    1,231,875/1,699,819.56 = 687,941.28/x
  3. Step 3: Cross multiply
    1,231,875x = 1,699,819.56 × 687,941.28
  4. Step 4: Simplify right side
    1,231,875x = 1,169,376,043,875.44
  5. Step 5: Solve for x
    x = 1,169,376,043,875.44/1,231,875
  6. Step 6: Final answer
    x = 949,265.18

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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.