Home / 1,398,005.83-2,097,014.22-425,379.84

Finding the Fourth Proportional to 1,398,005.83, 2,097,014.22 and 425,379.84

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Solution

The fourth proportional to 1,398,005.83, 2,097,014.22 and 425,379.84 is: 638,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,005.83 : 2,097,014.22 = 425,379.84 : x
  2. Step 2: Convert to fraction form
    1,398,005.83/2,097,014.22 = 425,379.84/x
  3. Step 3: Cross multiply
    1,398,005.83x = 2,097,014.22 × 425,379.84
  4. Step 4: Simplify right side
    1,398,005.83x = 892,027,573,381.33
  5. Step 5: Solve for x
    x = 892,027,573,381.33/1,398,005.83
  6. Step 6: Final answer
    x = 638,071.43

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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.