Home / 842,704.55-1,264,182.88-310,185.03

Finding the Fourth Proportional to 842,704.55, 1,264,182.88 and 310,185.03

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Solution

The fourth proportional to 842,704.55, 1,264,182.88 and 310,185.03 is: 465,323.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,704.55 : 1,264,182.88 = 310,185.03 : x
  2. Step 2: Convert to fraction form
    842,704.55/1,264,182.88 = 310,185.03/x
  3. Step 3: Cross multiply
    842,704.55x = 1,264,182.88 × 310,185.03
  4. Step 4: Simplify right side
    842,704.55x = 392,130,604,558.29
  5. Step 5: Solve for x
    x = 392,130,604,558.29/842,704.55
  6. Step 6: Final answer
    x = 465,323.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.