Home / 3,980,897.76-5,971,165.20-1,285,347.36

Finding the Fourth Proportional to 3,980,897.76, 5,971,165.20 and 1,285,347.36

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Solution

The fourth proportional to 3,980,897.76, 5,971,165.20 and 1,285,347.36 is: 1,927,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,897.76 : 5,971,165.20 = 1,285,347.36 : x
  2. Step 2: Convert to fraction form
    3,980,897.76/5,971,165.20 = 1,285,347.36/x
  3. Step 3: Cross multiply
    3,980,897.76x = 5,971,165.20 × 1,285,347.36
  4. Step 4: Simplify right side
    3,980,897.76x = 7,675,021,425,943.87
  5. Step 5: Solve for x
    x = 7,675,021,425,943.87/3,980,897.76
  6. Step 6: Final answer
    x = 1,927,962.46

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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.