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Finding the Fourth Proportional to 526.36, 785.27 and 479.20

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Solution

The fourth proportional to 526.36, 785.27 and 479.20 is: 714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.36 : 785.27 = 479.20 : x
  2. Step 2: Convert to fraction form
    526.36/785.27 = 479.20/x
  3. Step 3: Cross multiply
    526.36x = 785.27 × 479.20
  4. Step 4: Simplify right side
    526.36x = 376,301.38
  5. Step 5: Solve for x
    x = 376,301.38/526.36
  6. Step 6: Final answer
    x = 714.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.