Home / 780,297.07-1,171,109.93-307,314.58

Finding the Fourth Proportional to 780,297.07, 1,171,109.93 and 307,314.58

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Solution

The fourth proportional to 780,297.07, 1,171,109.93 and 307,314.58 is: 461,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,297.07 : 1,171,109.93 = 307,314.58 : x
  2. Step 2: Convert to fraction form
    780,297.07/1,171,109.93 = 307,314.58/x
  3. Step 3: Cross multiply
    780,297.07x = 1,171,109.93 × 307,314.58
  4. Step 4: Simplify right side
    780,297.07x = 359,899,156,271.78
  5. Step 5: Solve for x
    x = 359,899,156,271.78/780,297.07
  6. Step 6: Final answer
    x = 461,233.51

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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.