Home / 771,040.50-1,064,597.13-618,915.48

Finding the Fourth Proportional to 771,040.50, 1,064,597.13 and 618,915.48

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Solution

The fourth proportional to 771,040.50, 1,064,597.13 and 618,915.48 is: 854,553.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,040.50 : 1,064,597.13 = 618,915.48 : x
  2. Step 2: Convert to fraction form
    771,040.50/1,064,597.13 = 618,915.48/x
  3. Step 3: Cross multiply
    771,040.50x = 1,064,597.13 × 618,915.48
  4. Step 4: Simplify right side
    771,040.50x = 658,895,643,720.57
  5. Step 5: Solve for x
    x = 658,895,643,720.57/771,040.50
  6. Step 6: Final answer
    x = 854,553.87

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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.