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Finding the Fourth Proportional to 586.76, 808.88 and 469.08

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Solution

The fourth proportional to 586.76, 808.88 and 469.08 is: 646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.76 : 808.88 = 469.08 : x
  2. Step 2: Convert to fraction form
    586.76/808.88 = 469.08/x
  3. Step 3: Cross multiply
    586.76x = 808.88 × 469.08
  4. Step 4: Simplify right side
    586.76x = 379,427.09
  5. Step 5: Solve for x
    x = 379,427.09/586.76
  6. Step 6: Final answer
    x = 646.65

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Find fourth proportional to 293.38, 404.44 and 234.54
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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.