Home / 558,030.89-768,715.97-404,618.31

Finding the Fourth Proportional to 558,030.89, 768,715.97 and 404,618.31

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Solution

The fourth proportional to 558,030.89, 768,715.97 and 404,618.31 is: 557,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,030.89 : 768,715.97 = 404,618.31 : x
  2. Step 2: Convert to fraction form
    558,030.89/768,715.97 = 404,618.31/x
  3. Step 3: Cross multiply
    558,030.89x = 768,715.97 × 404,618.31
  4. Step 4: Simplify right side
    558,030.89x = 311,036,554,628.32
  5. Step 5: Solve for x
    x = 311,036,554,628.32/558,030.89
  6. Step 6: Final answer
    x = 557,382.33

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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.