Home / 755,302.45-1,042,340.86-411,161.30

Finding the Fourth Proportional to 755,302.45, 1,042,340.86 and 411,161.30

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Solution

The fourth proportional to 755,302.45, 1,042,340.86 and 411,161.30 is: 567,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,302.45 : 1,042,340.86 = 411,161.30 : x
  2. Step 2: Convert to fraction form
    755,302.45/1,042,340.86 = 411,161.30/x
  3. Step 3: Cross multiply
    755,302.45x = 1,042,340.86 × 411,161.30
  4. Step 4: Simplify right side
    755,302.45x = 428,570,223,040.72
  5. Step 5: Solve for x
    x = 428,570,223,040.72/755,302.45
  6. Step 6: Final answer
    x = 567,415.38

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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.