Home / 1,108,228.80-1,662,343.20-398,328.60

Finding the Fourth Proportional to 1,108,228.80, 1,662,343.20 and 398,328.60

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Solution

The fourth proportional to 1,108,228.80, 1,662,343.20 and 398,328.60 is: 597,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,228.80 : 1,662,343.20 = 398,328.60 : x
  2. Step 2: Convert to fraction form
    1,108,228.80/1,662,343.20 = 398,328.60/x
  3. Step 3: Cross multiply
    1,108,228.80x = 1,662,343.20 × 398,328.60
  4. Step 4: Simplify right side
    1,108,228.80x = 662,158,839,575.52
  5. Step 5: Solve for x
    x = 662,158,839,575.52/1,108,228.80
  6. Step 6: Final answer
    x = 597,492.90

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1.5x scale

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.