Home / 1,290,203.60-1,935,881.40-449,358.80

Finding the Fourth Proportional to 1,290,203.60, 1,935,881.40 and 449,358.80

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Solution

The fourth proportional to 1,290,203.60, 1,935,881.40 and 449,358.80 is: 674,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,203.60 : 1,935,881.40 = 449,358.80 : x
  2. Step 2: Convert to fraction form
    1,290,203.60/1,935,881.40 = 449,358.80/x
  3. Step 3: Cross multiply
    1,290,203.60x = 1,935,881.40 × 449,358.80
  4. Step 4: Simplify right side
    1,290,203.60x = 869,905,342,846.32
  5. Step 5: Solve for x
    x = 869,905,342,846.32/1,290,203.60
  6. Step 6: Final answer
    x = 674,238.81

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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.