Home / 986,209.40-1,479,314.10-808,916.60

Finding the Fourth Proportional to 986,209.40, 1,479,314.10 and 808,916.60

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Solution

The fourth proportional to 986,209.40, 1,479,314.10 and 808,916.60 is: 1,213,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,209.40 : 1,479,314.10 = 808,916.60 : x
  2. Step 2: Convert to fraction form
    986,209.40/1,479,314.10 = 808,916.60/x
  3. Step 3: Cross multiply
    986,209.40x = 1,479,314.10 × 808,916.60
  4. Step 4: Simplify right side
    986,209.40x = 1,196,641,732,104.06
  5. Step 5: Solve for x
    x = 1,196,641,732,104.06/986,209.40
  6. Step 6: Final answer
    x = 1,213,374.90

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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.