Home / 1,103,123.76-1,522,228.80-619,769.36

Finding the Fourth Proportional to 1,103,123.76, 1,522,228.80 and 619,769.36

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Solution

The fourth proportional to 1,103,123.76, 1,522,228.80 and 619,769.36 is: 855,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,123.76 : 1,522,228.80 = 619,769.36 : x
  2. Step 2: Convert to fraction form
    1,103,123.76/1,522,228.80 = 619,769.36/x
  3. Step 3: Cross multiply
    1,103,123.76x = 1,522,228.80 × 619,769.36
  4. Step 4: Simplify right side
    1,103,123.76x = 943,430,769,149.57
  5. Step 5: Solve for x
    x = 943,430,769,149.57/1,103,123.76
  6. Step 6: Final answer
    x = 855,235.65

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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.