Home / 1,078,944.31-1,618,416.01-320,782.50

Finding the Fourth Proportional to 1,078,944.31, 1,618,416.01 and 320,782.50

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Solution

The fourth proportional to 1,078,944.31, 1,618,416.01 and 320,782.50 is: 481,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,944.31 : 1,618,416.01 = 320,782.50 : x
  2. Step 2: Convert to fraction form
    1,078,944.31/1,618,416.01 = 320,782.50/x
  3. Step 3: Cross multiply
    1,078,944.31x = 1,618,416.01 × 320,782.50
  4. Step 4: Simplify right side
    1,078,944.31x = 519,159,533,727.83
  5. Step 5: Solve for x
    x = 519,159,533,727.83/1,078,944.31
  6. Step 6: Final answer
    x = 481,173.61

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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.