Home / 809,092.80-1,211,306.40-715,780.80

Finding the Fourth Proportional to 809,092.80, 1,211,306.40 and 715,780.80

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Solution

The fourth proportional to 809,092.80, 1,211,306.40 and 715,780.80 is: 1,071,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,092.80 : 1,211,306.40 = 715,780.80 : x
  2. Step 2: Convert to fraction form
    809,092.80/1,211,306.40 = 715,780.80/x
  3. Step 3: Cross multiply
    809,092.80x = 1,211,306.40 × 715,780.80
  4. Step 4: Simplify right side
    809,092.80x = 867,029,864,037.12
  5. Step 5: Solve for x
    x = 867,029,864,037.12/809,092.80
  6. Step 6: Final answer
    x = 1,071,607.44

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1.5x scale

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.