Home / 657,140.22-906,852.87-355,333.50

Finding the Fourth Proportional to 657,140.22, 906,852.87 and 355,333.50

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Solution

The fourth proportional to 657,140.22, 906,852.87 and 355,333.50 is: 490,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,140.22 : 906,852.87 = 355,333.50 : x
  2. Step 2: Convert to fraction form
    657,140.22/906,852.87 = 355,333.50/x
  3. Step 3: Cross multiply
    657,140.22x = 906,852.87 × 355,333.50
  4. Step 4: Simplify right side
    657,140.22x = 322,235,204,282.15
  5. Step 5: Solve for x
    x = 322,235,204,282.15/657,140.22
  6. Step 6: Final answer
    x = 490,359.89

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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.