Home / 791,239.51-1,091,909.19-428,672.58

Finding the Fourth Proportional to 791,239.51, 1,091,909.19 and 428,672.58

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Solution

The fourth proportional to 791,239.51, 1,091,909.19 and 428,672.58 is: 591,567.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,239.51 : 1,091,909.19 = 428,672.58 : x
  2. Step 2: Convert to fraction form
    791,239.51/1,091,909.19 = 428,672.58/x
  3. Step 3: Cross multiply
    791,239.51x = 1,091,909.19 × 428,672.58
  4. Step 4: Simplify right side
    791,239.51x = 468,071,529,603.01
  5. Step 5: Solve for x
    x = 468,071,529,603.01/791,239.51
  6. Step 6: Final answer
    x = 591,567.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.