Home / 753,485.40-1,130,410.35-221,023.80

Finding the Fourth Proportional to 753,485.40, 1,130,410.35 and 221,023.80

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Solution

The fourth proportional to 753,485.40, 1,130,410.35 and 221,023.80 is: 331,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,485.40 : 1,130,410.35 = 221,023.80 : x
  2. Step 2: Convert to fraction form
    753,485.40/1,130,410.35 = 221,023.80/x
  3. Step 3: Cross multiply
    753,485.40x = 1,130,410.35 × 221,023.80
  4. Step 4: Simplify right side
    753,485.40x = 249,847,591,116.33
  5. Step 5: Solve for x
    x = 249,847,591,116.33/753,485.40
  6. Step 6: Final answer
    x = 331,589.16

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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.