Home / 1,688,997.25-2,330,832.63-1,009,933.75

Finding the Fourth Proportional to 1,688,997.25, 2,330,832.63 and 1,009,933.75

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Solution

The fourth proportional to 1,688,997.25, 2,330,832.63 and 1,009,933.75 is: 1,393,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,997.25 : 2,330,832.63 = 1,009,933.75 : x
  2. Step 2: Convert to fraction form
    1,688,997.25/2,330,832.63 = 1,009,933.75/x
  3. Step 3: Cross multiply
    1,688,997.25x = 2,330,832.63 × 1,009,933.75
  4. Step 4: Simplify right side
    1,688,997.25x = 2,353,986,538,638.26
  5. Step 5: Solve for x
    x = 2,353,986,538,638.26/1,688,997.25
  6. Step 6: Final answer
    x = 1,393,718.40

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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.