Home / 1,638,270.82-2,457,404.07-761,823.28

Finding the Fourth Proportional to 1,638,270.82, 2,457,404.07 and 761,823.28

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Solution

The fourth proportional to 1,638,270.82, 2,457,404.07 and 761,823.28 is: 1,142,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,270.82 : 2,457,404.07 = 761,823.28 : x
  2. Step 2: Convert to fraction form
    1,638,270.82/2,457,404.07 = 761,823.28/x
  3. Step 3: Cross multiply
    1,638,270.82x = 2,457,404.07 × 761,823.28
  4. Step 4: Simplify right side
    1,638,270.82x = 1,872,107,628,892.75
  5. Step 5: Solve for x
    x = 1,872,107,628,892.75/1,638,270.82
  6. Step 6: Final answer
    x = 1,142,733.92

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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.