Home / 939,804.81-1,407,322.58-787,601.76

Finding the Fourth Proportional to 939,804.81, 1,407,322.58 and 787,601.76

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Solution

The fourth proportional to 939,804.81, 1,407,322.58 and 787,601.76 is: 1,179,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,804.81 : 1,407,322.58 = 787,601.76 : x
  2. Step 2: Convert to fraction form
    939,804.81/1,407,322.58 = 787,601.76/x
  3. Step 3: Cross multiply
    939,804.81x = 1,407,322.58 × 787,601.76
  4. Step 4: Simplify right side
    939,804.81x = 1,108,409,736,957.73
  5. Step 5: Solve for x
    x = 1,108,409,736,957.73/939,804.81
  6. Step 6: Final answer
    x = 1,179,404.20

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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.