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Finding the Fourth Proportional to 425,679, 587,441.07 and 234,699.23

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Solution

The fourth proportional to 425,679, 587,441.07 and 234,699.23 is: 323,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,679 : 587,441.07 = 234,699.23 : x
  2. Step 2: Convert to fraction form
    425,679/587,441.07 = 234,699.23/x
  3. Step 3: Cross multiply
    425,679x = 587,441.07 × 234,699.23
  4. Step 4: Simplify right side
    425,679x = 137,871,963,862.17
  5. Step 5: Solve for x
    x = 137,871,963,862.17/425,679
  6. Step 6: Final answer
    x = 323,887.16

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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.