Home / 903,860.20-1,247,271.78-495,879.40

Finding the Fourth Proportional to 903,860.20, 1,247,271.78 and 495,879.40

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Solution

The fourth proportional to 903,860.20, 1,247,271.78 and 495,879.40 is: 684,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,860.20 : 1,247,271.78 = 495,879.40 : x
  2. Step 2: Convert to fraction form
    903,860.20/1,247,271.78 = 495,879.40/x
  3. Step 3: Cross multiply
    903,860.20x = 1,247,271.78 × 495,879.40
  4. Step 4: Simplify right side
    903,860.20x = 618,496,381,903.33
  5. Step 5: Solve for x
    x = 618,496,381,903.33/903,860.20
  6. Step 6: Final answer
    x = 684,283.24

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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.