Home / 780,451.40-1,170,660.69-359,727.27

Finding the Fourth Proportional to 780,451.40, 1,170,660.69 and 359,727.27

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Solution

The fourth proportional to 780,451.40, 1,170,660.69 and 359,727.27 is: 539,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,451.40 : 1,170,660.69 = 359,727.27 : x
  2. Step 2: Convert to fraction form
    780,451.40/1,170,660.69 = 359,727.27/x
  3. Step 3: Cross multiply
    780,451.40x = 1,170,660.69 × 359,727.27
  4. Step 4: Simplify right side
    780,451.40x = 421,118,574,110.02
  5. Step 5: Solve for x
    x = 421,118,574,110.02/780,451.40
  6. Step 6: Final answer
    x = 539,583.34

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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.