Home / 401,821.80-602,513.70-121,302.60

Finding the Fourth Proportional to 401,821.80, 602,513.70 and 121,302.60

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Solution

The fourth proportional to 401,821.80, 602,513.70 and 121,302.60 is: 181,887.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,821.80 : 602,513.70 = 121,302.60 : x
  2. Step 2: Convert to fraction form
    401,821.80/602,513.70 = 121,302.60/x
  3. Step 3: Cross multiply
    401,821.80x = 602,513.70 × 121,302.60
  4. Step 4: Simplify right side
    401,821.80x = 73,086,478,345.62
  5. Step 5: Solve for x
    x = 73,086,478,345.62/401,821.80
  6. Step 6: Final answer
    x = 181,887.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.