Home / 680,427.09-1,018,720.80-359,852.49

Finding the Fourth Proportional to 680,427.09, 1,018,720.80 and 359,852.49

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Solution

The fourth proportional to 680,427.09, 1,018,720.80 and 359,852.49 is: 538,763.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,427.09 : 1,018,720.80 = 359,852.49 : x
  2. Step 2: Convert to fraction form
    680,427.09/1,018,720.80 = 359,852.49/x
  3. Step 3: Cross multiply
    680,427.09x = 1,018,720.80 × 359,852.49
  4. Step 4: Simplify right side
    680,427.09x = 366,589,216,494.79
  5. Step 5: Solve for x
    x = 366,589,216,494.79/680,427.09
  6. Step 6: Final answer
    x = 538,763.41

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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.