Home / 1,123,360.18-1,549,858.53-639,583.03

Finding the Fourth Proportional to 1,123,360.18, 1,549,858.53 and 639,583.03

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Solution

The fourth proportional to 1,123,360.18, 1,549,858.53 and 639,583.03 is: 882,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,360.18 : 1,549,858.53 = 639,583.03 : x
  2. Step 2: Convert to fraction form
    1,123,360.18/1,549,858.53 = 639,583.03/x
  3. Step 3: Cross multiply
    1,123,360.18x = 1,549,858.53 × 639,583.03
  4. Step 4: Simplify right side
    1,123,360.18x = 991,263,214,688.75
  5. Step 5: Solve for x
    x = 991,263,214,688.75/1,123,360.18
  6. Step 6: Final answer
    x = 882,409.07

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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.