Home / 553,739.03-764,160.40-299,090.22

Finding the Fourth Proportional to 553,739.03, 764,160.40 and 299,090.22

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Solution

The fourth proportional to 553,739.03, 764,160.40 and 299,090.22 is: 412,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,739.03 : 764,160.40 = 299,090.22 : x
  2. Step 2: Convert to fraction form
    553,739.03/764,160.40 = 299,090.22/x
  3. Step 3: Cross multiply
    553,739.03x = 764,160.40 × 299,090.22
  4. Step 4: Simplify right side
    553,739.03x = 228,552,902,899.01
  5. Step 5: Solve for x
    x = 228,552,902,899.01/553,739.03
  6. Step 6: Final answer
    x = 412,744.79

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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.