Home / 657,188.03-906,919.53-355,382.03

Finding the Fourth Proportional to 657,188.03, 906,919.53 and 355,382.03

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Solution

The fourth proportional to 657,188.03, 906,919.53 and 355,382.03 is: 490,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,188.03 : 906,919.53 = 355,382.03 : x
  2. Step 2: Convert to fraction form
    657,188.03/906,919.53 = 355,382.03/x
  3. Step 3: Cross multiply
    657,188.03x = 906,919.53 × 355,382.03
  4. Step 4: Simplify right side
    657,188.03x = 322,302,903,618.05
  5. Step 5: Solve for x
    x = 322,302,903,618.05/657,188.03
  6. Step 6: Final answer
    x = 490,427.23

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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.