Home / 2,130,967.80-3,198,266.10-869,700.60

Finding the Fourth Proportional to 2,130,967.80, 3,198,266.10 and 869,700.60

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Solution

The fourth proportional to 2,130,967.80, 3,198,266.10 and 869,700.60 is: 1,305,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,967.80 : 3,198,266.10 = 869,700.60 : x
  2. Step 2: Convert to fraction form
    2,130,967.80/3,198,266.10 = 869,700.60/x
  3. Step 3: Cross multiply
    2,130,967.80x = 3,198,266.10 × 869,700.60
  4. Step 4: Simplify right side
    2,130,967.80x = 2,781,533,946,129.66
  5. Step 5: Solve for x
    x = 2,781,533,946,129.66/2,130,967.80
  6. Step 6: Final answer
    x = 1,305,291.40

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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.