Home / 1,227,990.79-1,694,679.60-684,126.28

Finding the Fourth Proportional to 1,227,990.79, 1,694,679.60 and 684,126.28

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Solution

The fourth proportional to 1,227,990.79, 1,694,679.60 and 684,126.28 is: 944,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,990.79 : 1,694,679.60 = 684,126.28 : x
  2. Step 2: Convert to fraction form
    1,227,990.79/1,694,679.60 = 684,126.28/x
  3. Step 3: Cross multiply
    1,227,990.79x = 1,694,679.60 × 684,126.28
  4. Step 4: Simplify right side
    1,227,990.79x = 1,159,374,850,539.89
  5. Step 5: Solve for x
    x = 1,159,374,850,539.89/1,227,990.79
  6. Step 6: Final answer
    x = 944,123.41

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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.