Home / 1,638,121.80-2,457,182.70-929,533.80

Finding the Fourth Proportional to 1,638,121.80, 2,457,182.70 and 929,533.80

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Solution

The fourth proportional to 1,638,121.80, 2,457,182.70 and 929,533.80 is: 1,394,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,121.80 : 2,457,182.70 = 929,533.80 : x
  2. Step 2: Convert to fraction form
    1,638,121.80/2,457,182.70 = 929,533.80/x
  3. Step 3: Cross multiply
    1,638,121.80x = 2,457,182.70 × 929,533.80
  4. Step 4: Simplify right side
    1,638,121.80x = 2,284,034,372,425.26
  5. Step 5: Solve for x
    x = 2,284,034,372,425.26/1,638,121.80
  6. Step 6: Final answer
    x = 1,394,300.70

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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.