Home / 657,165.06-906,887.86-355,359.06

Finding the Fourth Proportional to 657,165.06, 906,887.86 and 355,359.06

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Solution

The fourth proportional to 657,165.06, 906,887.86 and 355,359.06 is: 490,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,165.06 : 906,887.86 = 355,359.06 : x
  2. Step 2: Convert to fraction form
    657,165.06/906,887.86 = 355,359.06/x
  3. Step 3: Cross multiply
    657,165.06x = 906,887.86 × 355,359.06
  4. Step 4: Simplify right side
    657,165.06x = 322,270,817,455.01
  5. Step 5: Solve for x
    x = 322,270,817,455.01/657,165.06
  6. Step 6: Final answer
    x = 490,395.54

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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.