Home / 1,223,135.20-1,834,702.80-1,211,325.40

Finding the Fourth Proportional to 1,223,135.20, 1,834,702.80 and 1,211,325.40

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Solution

The fourth proportional to 1,223,135.20, 1,834,702.80 and 1,211,325.40 is: 1,816,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,135.20 : 1,834,702.80 = 1,211,325.40 : x
  2. Step 2: Convert to fraction form
    1,223,135.20/1,834,702.80 = 1,211,325.40/x
  3. Step 3: Cross multiply
    1,223,135.20x = 1,834,702.80 × 1,211,325.40
  4. Step 4: Simplify right side
    1,223,135.20x = 2,222,422,103,091.12
  5. Step 5: Solve for x
    x = 2,222,422,103,091.12/1,223,135.20
  6. Step 6: Final answer
    x = 1,816,988.10

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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.