Home / 1,202,479.89-1,803,885.90-403,989.78

Finding the Fourth Proportional to 1,202,479.89, 1,803,885.90 and 403,989.78

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Solution

The fourth proportional to 1,202,479.89, 1,803,885.90 and 403,989.78 is: 606,040.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,479.89 : 1,803,885.90 = 403,989.78 : x
  2. Step 2: Convert to fraction form
    1,202,479.89/1,803,885.90 = 403,989.78/x
  3. Step 3: Cross multiply
    1,202,479.89x = 1,803,885.90 × 403,989.78
  4. Step 4: Simplify right side
    1,202,479.89x = 728,751,467,886.10
  5. Step 5: Solve for x
    x = 728,751,467,886.10/1,202,479.89
  6. Step 6: Final answer
    x = 606,040.46

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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.