Home / 1,019,580.90-1,529,272.32-309,615.09

Finding the Fourth Proportional to 1,019,580.90, 1,529,272.32 and 309,615.09

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Solution

The fourth proportional to 1,019,580.90, 1,529,272.32 and 309,615.09 is: 464,392.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,580.90 : 1,529,272.32 = 309,615.09 : x
  2. Step 2: Convert to fraction form
    1,019,580.90/1,529,272.32 = 309,615.09/x
  3. Step 3: Cross multiply
    1,019,580.90x = 1,529,272.32 × 309,615.09
  4. Step 4: Simplify right side
    1,019,580.90x = 473,485,786,991.31
  5. Step 5: Solve for x
    x = 473,485,786,991.31/1,019,580.90
  6. Step 6: Final answer
    x = 464,392.56

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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.