Home / 871,525.20-1,307,287.80-808,539.60

Finding the Fourth Proportional to 871,525.20, 1,307,287.80 and 808,539.60

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Solution

The fourth proportional to 871,525.20, 1,307,287.80 and 808,539.60 is: 1,212,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,525.20 : 1,307,287.80 = 808,539.60 : x
  2. Step 2: Convert to fraction form
    871,525.20/1,307,287.80 = 808,539.60/x
  3. Step 3: Cross multiply
    871,525.20x = 1,307,287.80 × 808,539.60
  4. Step 4: Simplify right side
    871,525.20x = 1,056,993,954,896.88
  5. Step 5: Solve for x
    x = 1,056,993,954,896.88/871,525.20
  6. Step 6: Final answer
    x = 1,212,809.40

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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.