Home / 1,520,401.80-2,280,311.10-455,478.60

Finding the Fourth Proportional to 1,520,401.80, 2,280,311.10 and 455,478.60

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Solution

The fourth proportional to 1,520,401.80, 2,280,311.10 and 455,478.60 is: 683,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,401.80 : 2,280,311.10 = 455,478.60 : x
  2. Step 2: Convert to fraction form
    1,520,401.80/2,280,311.10 = 455,478.60/x
  3. Step 3: Cross multiply
    1,520,401.80x = 2,280,311.10 × 455,478.60
  4. Step 4: Simplify right side
    1,520,401.80x = 1,038,632,907,392.46
  5. Step 5: Solve for x
    x = 1,038,632,907,392.46/1,520,401.80
  6. Step 6: Final answer
    x = 683,130.54

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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.