Home / 1,211,795.10-1,817,692.65-788,780.70

Finding the Fourth Proportional to 1,211,795.10, 1,817,692.65 and 788,780.70

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Solution

The fourth proportional to 1,211,795.10, 1,817,692.65 and 788,780.70 is: 1,183,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,795.10 : 1,817,692.65 = 788,780.70 : x
  2. Step 2: Convert to fraction form
    1,211,795.10/1,817,692.65 = 788,780.70/x
  3. Step 3: Cross multiply
    1,211,795.10x = 1,817,692.65 × 788,780.70
  4. Step 4: Simplify right side
    1,211,795.10x = 1,433,760,880,851.85
  5. Step 5: Solve for x
    x = 1,433,760,880,851.85/1,211,795.10
  6. Step 6: Final answer
    x = 1,183,171.05

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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.