Home / 1,228,257.81-1,840,141.39-890,461.89

Finding the Fourth Proportional to 1,228,257.81, 1,840,141.39 and 890,461.89

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Solution

The fourth proportional to 1,228,257.81, 1,840,141.39 and 890,461.89 is: 1,334,065.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,257.81 : 1,840,141.39 = 890,461.89 : x
  2. Step 2: Convert to fraction form
    1,228,257.81/1,840,141.39 = 890,461.89/x
  3. Step 3: Cross multiply
    1,228,257.81x = 1,840,141.39 × 890,461.89
  4. Step 4: Simplify right side
    1,228,257.81x = 1,638,575,777,780.47
  5. Step 5: Solve for x
    x = 1,638,575,777,780.47/1,228,257.81
  6. Step 6: Final answer
    x = 1,334,065.02

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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.