Home / 1,211,756.90-1,817,629.80-313,122.26

Finding the Fourth Proportional to 1,211,756.90, 1,817,629.80 and 313,122.26

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Solution

The fourth proportional to 1,211,756.90, 1,817,629.80 and 313,122.26 is: 469,681.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,756.90 : 1,817,629.80 = 313,122.26 : x
  2. Step 2: Convert to fraction form
    1,211,756.90/1,817,629.80 = 313,122.26/x
  3. Step 3: Cross multiply
    1,211,756.90x = 1,817,629.80 × 313,122.26
  4. Step 4: Simplify right side
    1,211,756.90x = 569,140,350,819.35
  5. Step 5: Solve for x
    x = 569,140,350,819.35/1,211,756.90
  6. Step 6: Final answer
    x = 469,681.96

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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.