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Finding the Fourth Proportional to 768.01, 1,059.68 and 436.36

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Solution

The fourth proportional to 768.01, 1,059.68 and 436.36 is: 602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    768.01 : 1,059.68 = 436.36 : x
  2. Step 2: Convert to fraction form
    768.01/1,059.68 = 436.36/x
  3. Step 3: Cross multiply
    768.01x = 1,059.68 × 436.36
  4. Step 4: Simplify right side
    768.01x = 462,401.96
  5. Step 5: Solve for x
    x = 462,401.96/768.01
  6. Step 6: Final answer
    x = 602.08

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1.5x scale

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.