Home / 1,409,308.39-2,113,696.90-398,422.32

Finding the Fourth Proportional to 1,409,308.39, 2,113,696.90 and 398,422.32

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Solution

The fourth proportional to 1,409,308.39, 2,113,696.90 and 398,422.32 is: 597,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,308.39 : 2,113,696.90 = 398,422.32 : x
  2. Step 2: Convert to fraction form
    1,409,308.39/2,113,696.90 = 398,422.32/x
  3. Step 3: Cross multiply
    1,409,308.39x = 2,113,696.90 × 398,422.32
  4. Step 4: Simplify right side
    1,409,308.39x = 842,144,022,674.81
  5. Step 5: Solve for x
    x = 842,144,022,674.81/1,409,308.39
  6. Step 6: Final answer
    x = 597,558.37

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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.