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Finding the Fourth Proportional to 1,617.76, 2,426.76 and 463.50

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Solution

The fourth proportional to 1,617.76, 2,426.76 and 463.50 is: 695.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.76 : 2,426.76 = 463.50 : x
  2. Step 2: Convert to fraction form
    1,617.76/2,426.76 = 463.50/x
  3. Step 3: Cross multiply
    1,617.76x = 2,426.76 × 463.50
  4. Step 4: Simplify right side
    1,617.76x = 1,124,803.26
  5. Step 5: Solve for x
    x = 1,124,803.26/1,617.76
  6. Step 6: Final answer
    x = 695.28

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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.