Home / 945,931-1,305,412.30-516,238.82

Finding the Fourth Proportional to 945,931, 1,305,412.30 and 516,238.82

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Solution

The fourth proportional to 945,931, 1,305,412.30 and 516,238.82 is: 712,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,931 : 1,305,412.30 = 516,238.82 : x
  2. Step 2: Convert to fraction form
    945,931/1,305,412.30 = 516,238.82/x
  3. Step 3: Cross multiply
    945,931x = 1,305,412.30 × 516,238.82
  4. Step 4: Simplify right side
    945,931x = 673,904,505,365.49
  5. Step 5: Solve for x
    x = 673,904,505,365.49/945,931
  6. Step 6: Final answer
    x = 712,424.59

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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.