Home / 780,427.51-1,170,752.84-240,729.37

Finding the Fourth Proportional to 780,427.51, 1,170,752.84 and 240,729.37

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Solution

The fourth proportional to 780,427.51, 1,170,752.84 and 240,729.37 is: 361,128.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,427.51 : 1,170,752.84 = 240,729.37 : x
  2. Step 2: Convert to fraction form
    780,427.51/1,170,752.84 = 240,729.37/x
  3. Step 3: Cross multiply
    780,427.51x = 1,170,752.84 × 240,729.37
  4. Step 4: Simplify right side
    780,427.51x = 281,834,590,371.12
  5. Step 5: Solve for x
    x = 281,834,590,371.12/780,427.51
  6. Step 6: Final answer
    x = 361,128.47

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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.