Home / 920,085.30-1,380,183.06-288,999.09

Finding the Fourth Proportional to 920,085.30, 1,380,183.06 and 288,999.09

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Solution

The fourth proportional to 920,085.30, 1,380,183.06 and 288,999.09 is: 433,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,085.30 : 1,380,183.06 = 288,999.09 : x
  2. Step 2: Convert to fraction form
    920,085.30/1,380,183.06 = 288,999.09/x
  3. Step 3: Cross multiply
    920,085.30x = 1,380,183.06 × 288,999.09
  4. Step 4: Simplify right side
    920,085.30x = 398,871,648,373.42
  5. Step 5: Solve for x
    x = 398,871,648,373.42/920,085.30
  6. Step 6: Final answer
    x = 433,515.95

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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.