Home / 859,329.52-1,289,274.09-409,992.26

Finding the Fourth Proportional to 859,329.52, 1,289,274.09 and 409,992.26

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Solution

The fourth proportional to 859,329.52, 1,289,274.09 and 409,992.26 is: 615,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,329.52 : 1,289,274.09 = 409,992.26 : x
  2. Step 2: Convert to fraction form
    859,329.52/1,289,274.09 = 409,992.26/x
  3. Step 3: Cross multiply
    859,329.52x = 1,289,274.09 × 409,992.26
  4. Step 4: Simplify right side
    859,329.52x = 528,592,394,713.89
  5. Step 5: Solve for x
    x = 528,592,394,713.89/859,329.52
  6. Step 6: Final answer
    x = 615,121.89

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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.