Home / 657,060.12-906,743.34-355,253.88

Finding the Fourth Proportional to 657,060.12, 906,743.34 and 355,253.88

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Solution

The fourth proportional to 657,060.12, 906,743.34 and 355,253.88 is: 490,250.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,060.12 : 906,743.34 = 355,253.88 : x
  2. Step 2: Convert to fraction form
    657,060.12/906,743.34 = 355,253.88/x
  3. Step 3: Cross multiply
    657,060.12x = 906,743.34 × 355,253.88
  4. Step 4: Simplify right side
    657,060.12x = 322,124,089,699.16
  5. Step 5: Solve for x
    x = 322,124,089,699.16/657,060.12
  6. Step 6: Final answer
    x = 490,250.56

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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.