Home / 755,415.75-1,042,439.72-411,242.87

Finding the Fourth Proportional to 755,415.75, 1,042,439.72 and 411,242.87

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Solution

The fourth proportional to 755,415.75, 1,042,439.72 and 411,242.87 is: 567,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,415.75 : 1,042,439.72 = 411,242.87 : x
  2. Step 2: Convert to fraction form
    755,415.75/1,042,439.72 = 411,242.87/x
  3. Step 3: Cross multiply
    755,415.75x = 1,042,439.72 × 411,242.87
  4. Step 4: Simplify right side
    755,415.75x = 428,695,905,889.00
  5. Step 5: Solve for x
    x = 428,695,905,889.00/755,415.75
  6. Step 6: Final answer
    x = 567,496.65

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1.5x scale

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.