Home / 2,578,853.70-3,870,030.15-1,678,101.30

Finding the Fourth Proportional to 2,578,853.70, 3,870,030.15 and 1,678,101.30

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Solution

The fourth proportional to 2,578,853.70, 3,870,030.15 and 1,678,101.30 is: 2,518,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,853.70 : 3,870,030.15 = 1,678,101.30 : x
  2. Step 2: Convert to fraction form
    2,578,853.70/3,870,030.15 = 1,678,101.30/x
  3. Step 3: Cross multiply
    2,578,853.70x = 3,870,030.15 × 1,678,101.30
  4. Step 4: Simplify right side
    2,578,853.70x = 6,494,302,625,754.20
  5. Step 5: Solve for x
    x = 6,494,302,625,754.20/2,578,853.70
  6. Step 6: Final answer
    x = 2,518,290.44

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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.