Home / 2,107,770.18-3,161,985.78-687,498.36

Finding the Fourth Proportional to 2,107,770.18, 3,161,985.78 and 687,498.36

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Solution

The fourth proportional to 2,107,770.18, 3,161,985.78 and 687,498.36 is: 1,031,355.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107,770.18 : 3,161,985.78 = 687,498.36 : x
  2. Step 2: Convert to fraction form
    2,107,770.18/3,161,985.78 = 687,498.36/x
  3. Step 3: Cross multiply
    2,107,770.18x = 3,161,985.78 × 687,498.36
  4. Step 4: Simplify right side
    2,107,770.18x = 2,173,860,038,093.32
  5. Step 5: Solve for x
    x = 2,173,860,038,093.32/2,107,770.18
  6. Step 6: Final answer
    x = 1,031,355.34

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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.