Home / 673,287.36-929,473.24-418,720.56

Finding the Fourth Proportional to 673,287.36, 929,473.24 and 418,720.56

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Solution

The fourth proportional to 673,287.36, 929,473.24 and 418,720.56 is: 578,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,287.36 : 929,473.24 = 418,720.56 : x
  2. Step 2: Convert to fraction form
    673,287.36/929,473.24 = 418,720.56/x
  3. Step 3: Cross multiply
    673,287.36x = 929,473.24 × 418,720.56
  4. Step 4: Simplify right side
    673,287.36x = 389,189,555,557.81
  5. Step 5: Solve for x
    x = 389,189,555,557.81/673,287.36
  6. Step 6: Final answer
    x = 578,043.76

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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.