Home / 1,347,408.20-2,021,112.30-808,531.40

Finding the Fourth Proportional to 1,347,408.20, 2,021,112.30 and 808,531.40

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Solution

The fourth proportional to 1,347,408.20, 2,021,112.30 and 808,531.40 is: 1,212,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,408.20 : 2,021,112.30 = 808,531.40 : x
  2. Step 2: Convert to fraction form
    1,347,408.20/2,021,112.30 = 808,531.40/x
  3. Step 3: Cross multiply
    1,347,408.20x = 2,021,112.30 × 808,531.40
  4. Step 4: Simplify right side
    1,347,408.20x = 1,634,132,757,476.22
  5. Step 5: Solve for x
    x = 1,634,132,757,476.22/1,347,408.20
  6. Step 6: Final answer
    x = 1,212,797.10

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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.