Home / 869,961.76-1,202,915.28-757,987.36

Finding the Fourth Proportional to 869,961.76, 1,202,915.28 and 757,987.36

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Solution

The fourth proportional to 869,961.76, 1,202,915.28 and 757,987.36 is: 1,048,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,961.76 : 1,202,915.28 = 757,987.36 : x
  2. Step 2: Convert to fraction form
    869,961.76/1,202,915.28 = 757,987.36/x
  3. Step 3: Cross multiply
    869,961.76x = 1,202,915.28 × 757,987.36
  4. Step 4: Simplify right side
    869,961.76x = 911,794,577,390.86
  5. Step 5: Solve for x
    x = 911,794,577,390.86/869,961.76
  6. Step 6: Final answer
    x = 1,048,085.81

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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.