Home / 1,212,920.40-1,819,380.60-360,022.80

Finding the Fourth Proportional to 1,212,920.40, 1,819,380.60 and 360,022.80

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Solution

The fourth proportional to 1,212,920.40, 1,819,380.60 and 360,022.80 is: 540,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,920.40 : 1,819,380.60 = 360,022.80 : x
  2. Step 2: Convert to fraction form
    1,212,920.40/1,819,380.60 = 360,022.80/x
  3. Step 3: Cross multiply
    1,212,920.40x = 1,819,380.60 × 360,022.80
  4. Step 4: Simplify right side
    1,212,920.40x = 655,018,497,877.68
  5. Step 5: Solve for x
    x = 655,018,497,877.68/1,212,920.40
  6. Step 6: Final answer
    x = 540,034.20

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1.5x scale

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.