Home / 1,615,213.73-2,229,009.89-890,087.40

Finding the Fourth Proportional to 1,615,213.73, 2,229,009.89 and 890,087.40

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Solution

The fourth proportional to 1,615,213.73, 2,229,009.89 and 890,087.40 is: 1,228,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,213.73 : 2,229,009.89 = 890,087.40 : x
  2. Step 2: Convert to fraction form
    1,615,213.73/2,229,009.89 = 890,087.40/x
  3. Step 3: Cross multiply
    1,615,213.73x = 2,229,009.89 × 890,087.40
  4. Step 4: Simplify right side
    1,615,213.73x = 1,984,013,606,419.34
  5. Step 5: Solve for x
    x = 1,984,013,606,419.34/1,615,213.73
  6. Step 6: Final answer
    x = 1,228,328.84

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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.