Home / 668,986.08-1,003,440.24-489,253.56

Finding the Fourth Proportional to 668,986.08, 1,003,440.24 and 489,253.56

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Solution

The fourth proportional to 668,986.08, 1,003,440.24 and 489,253.56 is: 733,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,986.08 : 1,003,440.24 = 489,253.56 : x
  2. Step 2: Convert to fraction form
    668,986.08/1,003,440.24 = 489,253.56/x
  3. Step 3: Cross multiply
    668,986.08x = 1,003,440.24 × 489,253.56
  4. Step 4: Simplify right side
    668,986.08x = 490,936,709,667.25
  5. Step 5: Solve for x
    x = 490,936,709,667.25/668,986.08
  6. Step 6: Final answer
    x = 733,851.91

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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.