Home / 830,530.30-1,245,795.45-814,783.90

Finding the Fourth Proportional to 830,530.30, 1,245,795.45 and 814,783.90

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Solution

The fourth proportional to 830,530.30, 1,245,795.45 and 814,783.90 is: 1,222,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,530.30 : 1,245,795.45 = 814,783.90 : x
  2. Step 2: Convert to fraction form
    830,530.30/1,245,795.45 = 814,783.90/x
  3. Step 3: Cross multiply
    830,530.30x = 1,245,795.45 × 814,783.90
  4. Step 4: Simplify right side
    830,530.30x = 1,015,054,075,353.26
  5. Step 5: Solve for x
    x = 1,015,054,075,353.26/830,530.30
  6. Step 6: Final answer
    x = 1,222,175.85

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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.