Home / 1,005,000.80-1,507,063.80-330,821.60

Finding the Fourth Proportional to 1,005,000.80, 1,507,063.80 and 330,821.60

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Solution

The fourth proportional to 1,005,000.80, 1,507,063.80 and 330,821.60 is: 496,088.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,000.80 : 1,507,063.80 = 330,821.60 : x
  2. Step 2: Convert to fraction form
    1,005,000.80/1,507,063.80 = 330,821.60/x
  3. Step 3: Cross multiply
    1,005,000.80x = 1,507,063.80 × 330,821.60
  4. Step 4: Simplify right side
    1,005,000.80x = 498,569,257,618.08
  5. Step 5: Solve for x
    x = 498,569,257,618.08/1,005,000.80
  6. Step 6: Final answer
    x = 496,088.42

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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.