Home / 1,397,266.40-2,095,899.60-1,220,119.40

Finding the Fourth Proportional to 1,397,266.40, 2,095,899.60 and 1,220,119.40

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Solution

The fourth proportional to 1,397,266.40, 2,095,899.60 and 1,220,119.40 is: 1,830,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,266.40 : 2,095,899.60 = 1,220,119.40 : x
  2. Step 2: Convert to fraction form
    1,397,266.40/2,095,899.60 = 1,220,119.40/x
  3. Step 3: Cross multiply
    1,397,266.40x = 2,095,899.60 × 1,220,119.40
  4. Step 4: Simplify right side
    1,397,266.40x = 2,557,247,762,412.24
  5. Step 5: Solve for x
    x = 2,557,247,762,412.24/1,397,266.40
  6. Step 6: Final answer
    x = 1,830,179.10

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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.