Home / 1,282,596.80-1,921,821.60-808,433.60

Finding the Fourth Proportional to 1,282,596.80, 1,921,821.60 and 808,433.60

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Solution

The fourth proportional to 1,282,596.80, 1,921,821.60 and 808,433.60 is: 1,211,343.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,596.80 : 1,921,821.60 = 808,433.60 : x
  2. Step 2: Convert to fraction form
    1,282,596.80/1,921,821.60 = 808,433.60/x
  3. Step 3: Cross multiply
    1,282,596.80x = 1,921,821.60 × 808,433.60
  4. Step 4: Simplify right side
    1,282,596.80x = 1,553,665,154,645.76
  5. Step 5: Solve for x
    x = 1,553,665,154,645.76/1,282,596.80
  6. Step 6: Final answer
    x = 1,211,343.39

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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.