Home / 839,978.80-1,259,968.20-761,246.80

Finding the Fourth Proportional to 839,978.80, 1,259,968.20 and 761,246.80

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Solution

The fourth proportional to 839,978.80, 1,259,968.20 and 761,246.80 is: 1,141,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,978.80 : 1,259,968.20 = 761,246.80 : x
  2. Step 2: Convert to fraction form
    839,978.80/1,259,968.20 = 761,246.80/x
  3. Step 3: Cross multiply
    839,978.80x = 1,259,968.20 × 761,246.80
  4. Step 4: Simplify right side
    839,978.80x = 959,146,760,351.76
  5. Step 5: Solve for x
    x = 959,146,760,351.76/839,978.80
  6. Step 6: Final answer
    x = 1,141,870.20

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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.