Home / 908,577.30-1,362,865.95-820,103.70

Finding the Fourth Proportional to 908,577.30, 1,362,865.95 and 820,103.70

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Solution

The fourth proportional to 908,577.30, 1,362,865.95 and 820,103.70 is: 1,230,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,577.30 : 1,362,865.95 = 820,103.70 : x
  2. Step 2: Convert to fraction form
    908,577.30/1,362,865.95 = 820,103.70/x
  3. Step 3: Cross multiply
    908,577.30x = 1,362,865.95 × 820,103.70
  4. Step 4: Simplify right side
    908,577.30x = 1,117,691,408,199.01
  5. Step 5: Solve for x
    x = 1,117,691,408,199.01/908,577.30
  6. Step 6: Final answer
    x = 1,230,155.55

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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.