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Finding the Fourth Proportional to 795.42, 1,192.83 and 430.01

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Solution

The fourth proportional to 795.42, 1,192.83 and 430.01 is: 644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.42 : 1,192.83 = 430.01 : x
  2. Step 2: Convert to fraction form
    795.42/1,192.83 = 430.01/x
  3. Step 3: Cross multiply
    795.42x = 1,192.83 × 430.01
  4. Step 4: Simplify right side
    795.42x = 512,925.72
  5. Step 5: Solve for x
    x = 512,925.72/795.42
  6. Step 6: Final answer
    x = 644.85

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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.