Home / 780,296.07-1,171,108.43-307,313.58

Finding the Fourth Proportional to 780,296.07, 1,171,108.43 and 307,313.58

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Solution

The fourth proportional to 780,296.07, 1,171,108.43 and 307,313.58 is: 461,232.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,296.07 : 1,171,108.43 = 307,313.58 : x
  2. Step 2: Convert to fraction form
    780,296.07/1,171,108.43 = 307,313.58/x
  3. Step 3: Cross multiply
    780,296.07x = 1,171,108.43 × 307,313.58
  4. Step 4: Simplify right side
    780,296.07x = 359,897,521,611.51
  5. Step 5: Solve for x
    x = 359,897,521,611.51/780,296.07
  6. Step 6: Final answer
    x = 461,232.01

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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.