Home / 751,436.60-1,037,138.99-690,911.37

Finding the Fourth Proportional to 751,436.60, 1,037,138.99 and 690,911.37

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Solution

The fourth proportional to 751,436.60, 1,037,138.99 and 690,911.37 is: 953,601.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,436.60 : 1,037,138.99 = 690,911.37 : x
  2. Step 2: Convert to fraction form
    751,436.60/1,037,138.99 = 690,911.37/x
  3. Step 3: Cross multiply
    751,436.60x = 1,037,138.99 × 690,911.37
  4. Step 4: Simplify right side
    751,436.60x = 716,571,117,006.76
  5. Step 5: Solve for x
    x = 716,571,117,006.76/751,436.60
  6. Step 6: Final answer
    x = 953,601.57

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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.