Home / 1,422,638.55-1,963,118.36-802,409.57

Finding the Fourth Proportional to 1,422,638.55, 1,963,118.36 and 802,409.57

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Solution

The fourth proportional to 1,422,638.55, 1,963,118.36 and 802,409.57 is: 1,107,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,638.55 : 1,963,118.36 = 802,409.57 : x
  2. Step 2: Convert to fraction form
    1,422,638.55/1,963,118.36 = 802,409.57/x
  3. Step 3: Cross multiply
    1,422,638.55x = 1,963,118.36 × 802,409.57
  4. Step 4: Simplify right side
    1,422,638.55x = 1,575,224,958,658.83
  5. Step 5: Solve for x
    x = 1,575,224,958,658.83/1,422,638.55
  6. Step 6: Final answer
    x = 1,107,255.92

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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.