Home / 814,405.87-1,123,996.22-470,172.98

Finding the Fourth Proportional to 814,405.87, 1,123,996.22 and 470,172.98

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Solution

The fourth proportional to 814,405.87, 1,123,996.22 and 470,172.98 is: 648,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,405.87 : 1,123,996.22 = 470,172.98 : x
  2. Step 2: Convert to fraction form
    814,405.87/1,123,996.22 = 470,172.98/x
  3. Step 3: Cross multiply
    814,405.87x = 1,123,996.22 × 470,172.98
  4. Step 4: Simplify right side
    814,405.87x = 528,472,652,266.14
  5. Step 5: Solve for x
    x = 528,472,652,266.14/814,405.87
  6. Step 6: Final answer
    x = 648,905.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.