Home / 2,146,502.40-3,219,753.60-1,390,675.20

Finding the Fourth Proportional to 2,146,502.40, 3,219,753.60 and 1,390,675.20

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Solution

The fourth proportional to 2,146,502.40, 3,219,753.60 and 1,390,675.20 is: 2,086,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146,502.40 : 3,219,753.60 = 1,390,675.20 : x
  2. Step 2: Convert to fraction form
    2,146,502.40/3,219,753.60 = 1,390,675.20/x
  3. Step 3: Cross multiply
    2,146,502.40x = 3,219,753.60 × 1,390,675.20
  4. Step 4: Simplify right side
    2,146,502.40x = 4,477,631,481,630.72
  5. Step 5: Solve for x
    x = 4,477,631,481,630.72/2,146,502.40
  6. Step 6: Final answer
    x = 2,086,012.80

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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.