Home / 1,315,055.20-1,971,999.60-605,300.80

Finding the Fourth Proportional to 1,315,055.20, 1,971,999.60 and 605,300.80

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Solution

The fourth proportional to 1,315,055.20, 1,971,999.60 and 605,300.80 is: 907,682.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,055.20 : 1,971,999.60 = 605,300.80 : x
  2. Step 2: Convert to fraction form
    1,315,055.20/1,971,999.60 = 605,300.80/x
  3. Step 3: Cross multiply
    1,315,055.20x = 1,971,999.60 × 605,300.80
  4. Step 4: Simplify right side
    1,315,055.20x = 1,193,652,935,479.68
  5. Step 5: Solve for x
    x = 1,193,652,935,479.68/1,315,055.20
  6. Step 6: Final answer
    x = 907,682.76

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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.