Home / 658,187.22-987,085.18-279,102.36

Finding the Fourth Proportional to 658,187.22, 987,085.18 and 279,102.36

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Solution

The fourth proportional to 658,187.22, 987,085.18 and 279,102.36 is: 418,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,187.22 : 987,085.18 = 279,102.36 : x
  2. Step 2: Convert to fraction form
    658,187.22/987,085.18 = 279,102.36/x
  3. Step 3: Cross multiply
    658,187.22x = 987,085.18 × 279,102.36
  4. Step 4: Simplify right side
    658,187.22x = 275,497,803,259.03
  5. Step 5: Solve for x
    x = 275,497,803,259.03/658,187.22
  6. Step 6: Final answer
    x = 418,570.58

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1.5x scale

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.