Home / 1,822,145.70-2,733,218.55-1,290,267.30

Finding the Fourth Proportional to 1,822,145.70, 2,733,218.55 and 1,290,267.30

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Solution

The fourth proportional to 1,822,145.70, 2,733,218.55 and 1,290,267.30 is: 1,935,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822,145.70 : 2,733,218.55 = 1,290,267.30 : x
  2. Step 2: Convert to fraction form
    1,822,145.70/2,733,218.55 = 1,290,267.30/x
  3. Step 3: Cross multiply
    1,822,145.70x = 2,733,218.55 × 1,290,267.30
  4. Step 4: Simplify right side
    1,822,145.70x = 3,526,582,518,818.42
  5. Step 5: Solve for x
    x = 3,526,582,518,818.42/1,822,145.70
  6. Step 6: Final answer
    x = 1,935,400.95

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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.