Home / 1,005,566.80-1,507,912.80-331,387.60

Finding the Fourth Proportional to 1,005,566.80, 1,507,912.80 and 331,387.60

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Solution

The fourth proportional to 1,005,566.80, 1,507,912.80 and 331,387.60 is: 496,937.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,566.80 : 1,507,912.80 = 331,387.60 : x
  2. Step 2: Convert to fraction form
    1,005,566.80/1,507,912.80 = 331,387.60/x
  3. Step 3: Cross multiply
    1,005,566.80x = 1,507,912.80 × 331,387.60
  4. Step 4: Simplify right side
    1,005,566.80x = 499,703,603,801.28
  5. Step 5: Solve for x
    x = 499,703,603,801.28/1,005,566.80
  6. Step 6: Final answer
    x = 496,937.25

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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.