Home / 1,259,968.20-1,889,952.30-786,920.10

Finding the Fourth Proportional to 1,259,968.20, 1,889,952.30 and 786,920.10

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Solution

The fourth proportional to 1,259,968.20, 1,889,952.30 and 786,920.10 is: 1,180,380.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,968.20 : 1,889,952.30 = 786,920.10 : x
  2. Step 2: Convert to fraction form
    1,259,968.20/1,889,952.30 = 786,920.10/x
  3. Step 3: Cross multiply
    1,259,968.20x = 1,889,952.30 × 786,920.10
  4. Step 4: Simplify right side
    1,259,968.20x = 1,487,241,452,911.23
  5. Step 5: Solve for x
    x = 1,487,241,452,911.23/1,259,968.20
  6. Step 6: Final answer
    x = 1,180,380.15

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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.