Home / 2,011,415.40-3,017,115.12-813,323.28

Finding the Fourth Proportional to 2,011,415.40, 3,017,115.12 and 813,323.28

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Solution

The fourth proportional to 2,011,415.40, 3,017,115.12 and 813,323.28 is: 1,219,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011,415.40 : 3,017,115.12 = 813,323.28 : x
  2. Step 2: Convert to fraction form
    2,011,415.40/3,017,115.12 = 813,323.28/x
  3. Step 3: Cross multiply
    2,011,415.40x = 3,017,115.12 × 813,323.28
  4. Step 4: Simplify right side
    2,011,415.40x = 2,453,889,965,535.99
  5. Step 5: Solve for x
    x = 2,453,889,965,535.99/2,011,415.40
  6. Step 6: Final answer
    x = 1,219,981.69

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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.