Home / 1,051,920.20-1,578,917.10-520,041.80

Finding the Fourth Proportional to 1,051,920.20, 1,578,917.10 and 520,041.80

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Solution

The fourth proportional to 1,051,920.20, 1,578,917.10 and 520,041.80 is: 780,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,920.20 : 1,578,917.10 = 520,041.80 : x
  2. Step 2: Convert to fraction form
    1,051,920.20/1,578,917.10 = 520,041.80/x
  3. Step 3: Cross multiply
    1,051,920.20x = 1,578,917.10 × 520,041.80
  4. Step 4: Simplify right side
    1,051,920.20x = 821,102,890,734.78
  5. Step 5: Solve for x
    x = 821,102,890,734.78/1,051,920.20
  6. Step 6: Final answer
    x = 780,575.27

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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.