Home / 1,224,043.26-1,689,145.89-680,164.98

Finding the Fourth Proportional to 1,224,043.26, 1,689,145.89 and 680,164.98

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Solution

The fourth proportional to 1,224,043.26, 1,689,145.89 and 680,164.98 is: 938,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,043.26 : 1,689,145.89 = 680,164.98 : x
  2. Step 2: Convert to fraction form
    1,224,043.26/1,689,145.89 = 680,164.98/x
  3. Step 3: Cross multiply
    1,224,043.26x = 1,689,145.89 × 680,164.98
  4. Step 4: Simplify right side
    1,224,043.26x = 1,148,897,880,488.93
  5. Step 5: Solve for x
    x = 1,148,897,880,488.93/1,224,043.26
  6. Step 6: Final answer
    x = 938,608.89

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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.