Home / 1,214,972.61-1,662,091.20-1,209,855.03

Finding the Fourth Proportional to 1,214,972.61, 1,662,091.20 and 1,209,855.03

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Solution

The fourth proportional to 1,214,972.61, 1,662,091.20 and 1,209,855.03 is: 1,655,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,972.61 : 1,662,091.20 = 1,209,855.03 : x
  2. Step 2: Convert to fraction form
    1,214,972.61/1,662,091.20 = 1,209,855.03/x
  3. Step 3: Cross multiply
    1,214,972.61x = 1,662,091.20 × 1,209,855.03
  4. Step 4: Simplify right side
    1,214,972.61x = 2,010,889,398,638.74
  5. Step 5: Solve for x
    x = 2,010,889,398,638.74/1,214,972.61
  6. Step 6: Final answer
    x = 1,655,090.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.