Home / 1,286,543.25-1,774,267.34-803,153.07

Finding the Fourth Proportional to 1,286,543.25, 1,774,267.34 and 803,153.07

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Solution

The fourth proportional to 1,286,543.25, 1,774,267.34 and 803,153.07 is: 1,107,625.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,543.25 : 1,774,267.34 = 803,153.07 : x
  2. Step 2: Convert to fraction form
    1,286,543.25/1,774,267.34 = 803,153.07/x
  3. Step 3: Cross multiply
    1,286,543.25x = 1,774,267.34 × 803,153.07
  4. Step 4: Simplify right side
    1,286,543.25x = 1,425,008,257,105.97
  5. Step 5: Solve for x
    x = 1,425,008,257,105.97/1,286,543.25
  6. Step 6: Final answer
    x = 1,107,625.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.