Home / 1,419,743.20-2,128,564.40-670,914.40

Finding the Fourth Proportional to 1,419,743.20, 2,128,564.40 and 670,914.40

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Solution

The fourth proportional to 1,419,743.20, 2,128,564.40 and 670,914.40 is: 1,005,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,743.20 : 2,128,564.40 = 670,914.40 : x
  2. Step 2: Convert to fraction form
    1,419,743.20/2,128,564.40 = 670,914.40/x
  3. Step 3: Cross multiply
    1,419,743.20x = 2,128,564.40 × 670,914.40
  4. Step 4: Simplify right side
    1,419,743.20x = 1,428,084,507,287.36
  5. Step 5: Solve for x
    x = 1,428,084,507,287.36/1,419,743.20
  6. Step 6: Final answer
    x = 1,005,875.22

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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.