Home / 1,202,476.89-1,803,881.40-403,986.78

Finding the Fourth Proportional to 1,202,476.89, 1,803,881.40 and 403,986.78

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Solution

The fourth proportional to 1,202,476.89, 1,803,881.40 and 403,986.78 is: 606,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,476.89 : 1,803,881.40 = 403,986.78 : x
  2. Step 2: Convert to fraction form
    1,202,476.89/1,803,881.40 = 403,986.78/x
  3. Step 3: Cross multiply
    1,202,476.89x = 1,803,881.40 × 403,986.78
  4. Step 4: Simplify right side
    1,202,476.89x = 728,744,238,287.89
  5. Step 5: Solve for x
    x = 728,744,238,287.89/1,202,476.89
  6. Step 6: Final answer
    x = 606,035.96

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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.