Home / 1,264,679.40-1,896,846.30-378,215.40

Finding the Fourth Proportional to 1,264,679.40, 1,896,846.30 and 378,215.40

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Solution

The fourth proportional to 1,264,679.40, 1,896,846.30 and 378,215.40 is: 567,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,679.40 : 1,896,846.30 = 378,215.40 : x
  2. Step 2: Convert to fraction form
    1,264,679.40/1,896,846.30 = 378,215.40/x
  3. Step 3: Cross multiply
    1,264,679.40x = 1,896,846.30 × 378,215.40
  4. Step 4: Simplify right side
    1,264,679.40x = 717,416,482,093.02
  5. Step 5: Solve for x
    x = 717,416,482,093.02/1,264,679.40
  6. Step 6: Final answer
    x = 567,271.42

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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.