Home / 790,369.78-1,090,608.69-450,817.78

Finding the Fourth Proportional to 790,369.78, 1,090,608.69 and 450,817.78

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Solution

The fourth proportional to 790,369.78, 1,090,608.69 and 450,817.78 is: 622,070.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,369.78 : 1,090,608.69 = 450,817.78 : x
  2. Step 2: Convert to fraction form
    790,369.78/1,090,608.69 = 450,817.78/x
  3. Step 3: Cross multiply
    790,369.78x = 1,090,608.69 × 450,817.78
  4. Step 4: Simplify right side
    790,369.78x = 491,665,788,474.51
  5. Step 5: Solve for x
    x = 491,665,788,474.51/790,369.78
  6. Step 6: Final answer
    x = 622,070.58

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1.5x scale

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.