Home / 638,090.46-880,583.36-351,629.01

Finding the Fourth Proportional to 638,090.46, 880,583.36 and 351,629.01

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Solution

The fourth proportional to 638,090.46, 880,583.36 and 351,629.01 is: 485,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,090.46 : 880,583.36 = 351,629.01 : x
  2. Step 2: Convert to fraction form
    638,090.46/880,583.36 = 351,629.01/x
  3. Step 3: Cross multiply
    638,090.46x = 880,583.36 × 351,629.01
  4. Step 4: Simplify right side
    638,090.46x = 309,638,653,341.13
  5. Step 5: Solve for x
    x = 309,638,653,341.13/638,090.46
  6. Step 6: Final answer
    x = 485,258.24

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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.