Home / 869,719.80-1,302,611.40-550,855.20

Finding the Fourth Proportional to 869,719.80, 1,302,611.40 and 550,855.20

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Solution

The fourth proportional to 869,719.80, 1,302,611.40 and 550,855.20 is: 825,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,719.80 : 1,302,611.40 = 550,855.20 : x
  2. Step 2: Convert to fraction form
    869,719.80/1,302,611.40 = 550,855.20/x
  3. Step 3: Cross multiply
    869,719.80x = 1,302,611.40 × 550,855.20
  4. Step 4: Simplify right side
    869,719.80x = 717,550,263,269.28
  5. Step 5: Solve for x
    x = 717,550,263,269.28/869,719.80
  6. Step 6: Final answer
    x = 825,036.14

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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.