Home / 751,639.12-1,037,003.40-445,652.56

Finding the Fourth Proportional to 751,639.12, 1,037,003.40 and 445,652.56

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Solution

The fourth proportional to 751,639.12, 1,037,003.40 and 445,652.56 is: 614,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,639.12 : 1,037,003.40 = 445,652.56 : x
  2. Step 2: Convert to fraction form
    751,639.12/1,037,003.40 = 445,652.56/x
  3. Step 3: Cross multiply
    751,639.12x = 1,037,003.40 × 445,652.56
  4. Step 4: Simplify right side
    751,639.12x = 462,143,219,938.70
  5. Step 5: Solve for x
    x = 462,143,219,938.70/751,639.12
  6. Step 6: Final answer
    x = 614,847.22

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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.