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Finding the Fourth Proportional to 465,679, 642,637.86 and 264,475

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Solution

The fourth proportional to 465,679, 642,637.86 and 264,475 is: 364,975.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,679 : 642,637.86 = 264,475 : x
  2. Step 2: Convert to fraction form
    465,679/642,637.86 = 264,475/x
  3. Step 3: Cross multiply
    465,679x = 642,637.86 × 264,475
  4. Step 4: Simplify right side
    465,679x = 169,961,648,023.50
  5. Step 5: Solve for x
    x = 169,961,648,023.50/465,679
  6. Step 6: Final answer
    x = 364,975.98

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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.