Home / 987,492.12-1,481,238.17-277,520.16

Finding the Fourth Proportional to 987,492.12, 1,481,238.17 and 277,520.16

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Solution

The fourth proportional to 987,492.12, 1,481,238.17 and 277,520.16 is: 416,280.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,492.12 : 1,481,238.17 = 277,520.16 : x
  2. Step 2: Convert to fraction form
    987,492.12/1,481,238.17 = 277,520.16/x
  3. Step 3: Cross multiply
    987,492.12x = 1,481,238.17 × 277,520.16
  4. Step 4: Simplify right side
    987,492.12x = 411,073,447,224.12
  5. Step 5: Solve for x
    x = 411,073,447,224.12/987,492.12
  6. Step 6: Final answer
    x = 416,280.23

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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.