Home / 1,664,985.50-2,296,120.70-1,105,189.90

Finding the Fourth Proportional to 1,664,985.50, 2,296,120.70 and 1,105,189.90

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Solution

The fourth proportional to 1,664,985.50, 2,296,120.70 and 1,105,189.90 is: 1,524,127.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,985.50 : 2,296,120.70 = 1,105,189.90 : x
  2. Step 2: Convert to fraction form
    1,664,985.50/2,296,120.70 = 1,105,189.90/x
  3. Step 3: Cross multiply
    1,664,985.50x = 2,296,120.70 × 1,105,189.90
  4. Step 4: Simplify right side
    1,664,985.50x = 2,537,649,406,820.93
  5. Step 5: Solve for x
    x = 2,537,649,406,820.93/1,664,985.50
  6. Step 6: Final answer
    x = 1,524,127.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.