Home / 2,679,139.40-4,018,644.30-1,613,373.80

Finding the Fourth Proportional to 2,679,139.40, 4,018,644.30 and 1,613,373.80

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Solution

The fourth proportional to 2,679,139.40, 4,018,644.30 and 1,613,373.80 is: 2,420,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,139.40 : 4,018,644.30 = 1,613,373.80 : x
  2. Step 2: Convert to fraction form
    2,679,139.40/4,018,644.30 = 1,613,373.80/x
  3. Step 3: Cross multiply
    2,679,139.40x = 4,018,644.30 × 1,613,373.80
  4. Step 4: Simplify right side
    2,679,139.40x = 6,483,575,425,139.34
  5. Step 5: Solve for x
    x = 6,483,575,425,139.34/2,679,139.40
  6. Step 6: Final answer
    x = 2,420,021.68

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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.