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Finding the Fourth Proportional to 526.51, 792.83 and 390.52

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Solution

The fourth proportional to 526.51, 792.83 and 390.52 is: 588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.51 : 792.83 = 390.52 : x
  2. Step 2: Convert to fraction form
    526.51/792.83 = 390.52/x
  3. Step 3: Cross multiply
    526.51x = 792.83 × 390.52
  4. Step 4: Simplify right side
    526.51x = 309,615.00
  5. Step 5: Solve for x
    x = 309,615.00/526.51
  6. Step 6: Final answer
    x = 588.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.