Home / 986,006.40-1,360,324.08-728,503.44

Finding the Fourth Proportional to 986,006.40, 1,360,324.08 and 728,503.44

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Solution

The fourth proportional to 986,006.40, 1,360,324.08 and 728,503.44 is: 1,005,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,006.40 : 1,360,324.08 = 728,503.44 : x
  2. Step 2: Convert to fraction form
    986,006.40/1,360,324.08 = 728,503.44/x
  3. Step 3: Cross multiply
    986,006.40x = 1,360,324.08 × 728,503.44
  4. Step 4: Simplify right side
    986,006.40x = 991,000,771,794.84
  5. Step 5: Solve for x
    x = 991,000,771,794.84/986,006.40
  6. Step 6: Final answer
    x = 1,005,065.25

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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.