Home / 1,890,818.40-2,836,486.80-628,514.40

Finding the Fourth Proportional to 1,890,818.40, 2,836,486.80 and 628,514.40

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Solution

The fourth proportional to 1,890,818.40, 2,836,486.80 and 628,514.40 is: 942,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,818.40 : 2,836,486.80 = 628,514.40 : x
  2. Step 2: Convert to fraction form
    1,890,818.40/2,836,486.80 = 628,514.40/x
  3. Step 3: Cross multiply
    1,890,818.40x = 2,836,486.80 × 628,514.40
  4. Step 4: Simplify right side
    1,890,818.40x = 1,782,772,799,209.92
  5. Step 5: Solve for x
    x = 1,782,772,799,209.92/1,890,818.40
  6. Step 6: Final answer
    x = 942,857.76

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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.