Home / 751,640.12-1,037,004.78-445,653.56

Finding the Fourth Proportional to 751,640.12, 1,037,004.78 and 445,653.56

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Solution

The fourth proportional to 751,640.12, 1,037,004.78 and 445,653.56 is: 614,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,640.12 : 1,037,004.78 = 445,653.56 : x
  2. Step 2: Convert to fraction form
    751,640.12/1,037,004.78 = 445,653.56/x
  3. Step 3: Cross multiply
    751,640.12x = 1,037,004.78 × 445,653.56
  4. Step 4: Simplify right side
    751,640.12x = 462,144,871,944.02
  5. Step 5: Solve for x
    x = 462,144,871,944.02/751,640.12
  6. Step 6: Final answer
    x = 614,848.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.