Home / 1,819,205.70-2,728,808.55-1,287,764.70

Finding the Fourth Proportional to 1,819,205.70, 2,728,808.55 and 1,287,764.70

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Solution

The fourth proportional to 1,819,205.70, 2,728,808.55 and 1,287,764.70 is: 1,931,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,205.70 : 2,728,808.55 = 1,287,764.70 : x
  2. Step 2: Convert to fraction form
    1,819,205.70/2,728,808.55 = 1,287,764.70/x
  3. Step 3: Cross multiply
    1,819,205.70x = 2,728,808.55 × 1,287,764.70
  4. Step 4: Simplify right side
    1,819,205.70x = 3,514,063,323,748.18
  5. Step 5: Solve for x
    x = 3,514,063,323,748.18/1,819,205.70
  6. Step 6: Final answer
    x = 1,931,647.05

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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.