Home / 1,212,310.80-1,818,400.27-370,862.55

Finding the Fourth Proportional to 1,212,310.80, 1,818,400.27 and 370,862.55

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Solution

The fourth proportional to 1,212,310.80, 1,818,400.27 and 370,862.55 is: 556,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,310.80 : 1,818,400.27 = 370,862.55 : x
  2. Step 2: Convert to fraction form
    1,212,310.80/1,818,400.27 = 370,862.55/x
  3. Step 3: Cross multiply
    1,212,310.80x = 1,818,400.27 × 370,862.55
  4. Step 4: Simplify right side
    1,212,310.80x = 674,376,561,052.89
  5. Step 5: Solve for x
    x = 674,376,561,052.89/1,212,310.80
  6. Step 6: Final answer
    x = 556,273.66

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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.