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Finding the Fourth Proportional to 653.34, 900.63 and 536.70

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Solution

The fourth proportional to 653.34, 900.63 and 536.70 is: 739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.34 : 900.63 = 536.70 : x
  2. Step 2: Convert to fraction form
    653.34/900.63 = 536.70/x
  3. Step 3: Cross multiply
    653.34x = 900.63 × 536.70
  4. Step 4: Simplify right side
    653.34x = 483,368.12
  5. Step 5: Solve for x
    x = 483,368.12/653.34
  6. Step 6: Final answer
    x = 739.84

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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.