Home / 1,342,417.40-2,013,626.10-1,290,807.80

Finding the Fourth Proportional to 1,342,417.40, 2,013,626.10 and 1,290,807.80

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Solution

The fourth proportional to 1,342,417.40, 2,013,626.10 and 1,290,807.80 is: 1,936,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,417.40 : 2,013,626.10 = 1,290,807.80 : x
  2. Step 2: Convert to fraction form
    1,342,417.40/2,013,626.10 = 1,290,807.80/x
  3. Step 3: Cross multiply
    1,342,417.40x = 2,013,626.10 × 1,290,807.80
  4. Step 4: Simplify right side
    1,342,417.40x = 2,599,204,276,163.58
  5. Step 5: Solve for x
    x = 2,599,204,276,163.58/1,342,417.40
  6. Step 6: Final answer
    x = 1,936,211.70

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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.