Home / 1,688,998.75-2,330,834.70-1,009,935.25

Finding the Fourth Proportional to 1,688,998.75, 2,330,834.70 and 1,009,935.25

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Solution

The fourth proportional to 1,688,998.75, 2,330,834.70 and 1,009,935.25 is: 1,393,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,998.75 : 2,330,834.70 = 1,009,935.25 : x
  2. Step 2: Convert to fraction form
    1,688,998.75/2,330,834.70 = 1,009,935.25/x
  3. Step 3: Cross multiply
    1,688,998.75x = 2,330,834.70 × 1,009,935.25
  4. Step 4: Simplify right side
    1,688,998.75x = 2,353,992,125,453.18
  5. Step 5: Solve for x
    x = 2,353,992,125,453.18/1,688,998.75
  6. Step 6: Final answer
    x = 1,393,720.47

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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.