Home / 903,786.18-1,247,182.82-495,878.82

Finding the Fourth Proportional to 903,786.18, 1,247,182.82 and 495,878.82

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Solution

The fourth proportional to 903,786.18, 1,247,182.82 and 495,878.82 is: 684,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,786.18 : 1,247,182.82 = 495,878.82 : x
  2. Step 2: Convert to fraction form
    903,786.18/1,247,182.82 = 495,878.82/x
  3. Step 3: Cross multiply
    903,786.18x = 1,247,182.82 × 495,878.82
  4. Step 4: Simplify right side
    903,786.18x = 618,451,545,105.87
  5. Step 5: Solve for x
    x = 618,451,545,105.87/903,786.18
  6. Step 6: Final answer
    x = 684,289.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.