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Finding the Fourth Proportional to 654.71, 904.29 and 477.39

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Solution

The fourth proportional to 654.71, 904.29 and 477.39 is: 659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.71 : 904.29 = 477.39 : x
  2. Step 2: Convert to fraction form
    654.71/904.29 = 477.39/x
  3. Step 3: Cross multiply
    654.71x = 904.29 × 477.39
  4. Step 4: Simplify right side
    654.71x = 431,699.00
  5. Step 5: Solve for x
    x = 431,699.00/654.71
  6. Step 6: Final answer
    x = 659.37

Related Problems

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Double scale
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1.5x scale

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.