Home / 780,055.40-1,170,083.10-675,079.40

Finding the Fourth Proportional to 780,055.40, 1,170,083.10 and 675,079.40

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Solution

The fourth proportional to 780,055.40, 1,170,083.10 and 675,079.40 is: 1,012,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,055.40 : 1,170,083.10 = 675,079.40 : x
  2. Step 2: Convert to fraction form
    780,055.40/1,170,083.10 = 675,079.40/x
  3. Step 3: Cross multiply
    780,055.40x = 1,170,083.10 × 675,079.40
  4. Step 4: Simplify right side
    780,055.40x = 789,898,997,098.14
  5. Step 5: Solve for x
    x = 789,898,997,098.14/780,055.40
  6. Step 6: Final answer
    x = 1,012,619.10

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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.