Home / 986,021.80-1,479,032.70-898,930.60

Finding the Fourth Proportional to 986,021.80, 1,479,032.70 and 898,930.60

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Solution

The fourth proportional to 986,021.80, 1,479,032.70 and 898,930.60 is: 1,348,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,021.80 : 1,479,032.70 = 898,930.60 : x
  2. Step 2: Convert to fraction form
    986,021.80/1,479,032.70 = 898,930.60/x
  3. Step 3: Cross multiply
    986,021.80x = 1,479,032.70 × 898,930.60
  4. Step 4: Simplify right side
    986,021.80x = 1,329,547,752,430.62
  5. Step 5: Solve for x
    x = 1,329,547,752,430.62/986,021.80
  6. Step 6: Final answer
    x = 1,348,395.90

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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.