Home / 999,986.61-1,500,135.74-325,911.52

Finding the Fourth Proportional to 999,986.61, 1,500,135.74 and 325,911.52

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Solution

The fourth proportional to 999,986.61, 1,500,135.74 and 325,911.52 is: 488,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,986.61 : 1,500,135.74 = 325,911.52 : x
  2. Step 2: Convert to fraction form
    999,986.61/1,500,135.74 = 325,911.52/x
  3. Step 3: Cross multiply
    999,986.61x = 1,500,135.74 × 325,911.52
  4. Step 4: Simplify right side
    999,986.61x = 488,911,526,749.89
  5. Step 5: Solve for x
    x = 488,911,526,749.89/999,986.61
  6. Step 6: Final answer
    x = 488,918.07

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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.