Home / 1,520,309.80-2,280,464.70-398,492.20

Finding the Fourth Proportional to 1,520,309.80, 2,280,464.70 and 398,492.20

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Solution

The fourth proportional to 1,520,309.80, 2,280,464.70 and 398,492.20 is: 597,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,309.80 : 2,280,464.70 = 398,492.20 : x
  2. Step 2: Convert to fraction form
    1,520,309.80/2,280,464.70 = 398,492.20/x
  3. Step 3: Cross multiply
    1,520,309.80x = 2,280,464.70 × 398,492.20
  4. Step 4: Simplify right side
    1,520,309.80x = 908,747,395,325.34
  5. Step 5: Solve for x
    x = 908,747,395,325.34/1,520,309.80
  6. Step 6: Final answer
    x = 597,738.30

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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.