Home / 1,207,279.70-1,810,919.55-1,188,617.30

Finding the Fourth Proportional to 1,207,279.70, 1,810,919.55 and 1,188,617.30

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Solution

The fourth proportional to 1,207,279.70, 1,810,919.55 and 1,188,617.30 is: 1,782,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,279.70 : 1,810,919.55 = 1,188,617.30 : x
  2. Step 2: Convert to fraction form
    1,207,279.70/1,810,919.55 = 1,188,617.30/x
  3. Step 3: Cross multiply
    1,207,279.70x = 1,810,919.55 × 1,188,617.30
  4. Step 4: Simplify right side
    1,207,279.70x = 2,152,490,306,038.22
  5. Step 5: Solve for x
    x = 2,152,490,306,038.22/1,207,279.70
  6. Step 6: Final answer
    x = 1,782,925.95

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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.