Home / 1,200,688.52-1,657,027.14-691,379.96

Finding the Fourth Proportional to 1,200,688.52, 1,657,027.14 and 691,379.96

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Solution

The fourth proportional to 1,200,688.52, 1,657,027.14 and 691,379.96 is: 954,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,688.52 : 1,657,027.14 = 691,379.96 : x
  2. Step 2: Convert to fraction form
    1,200,688.52/1,657,027.14 = 691,379.96/x
  3. Step 3: Cross multiply
    1,200,688.52x = 1,657,027.14 × 691,379.96
  4. Step 4: Simplify right side
    1,200,688.52x = 1,145,635,357,772.11
  5. Step 5: Solve for x
    x = 1,145,635,357,772.11/1,200,688.52
  6. Step 6: Final answer
    x = 954,148.67

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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.