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Finding the Fourth Proportional to 673.86, 929.49 and 585.42

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Solution

The fourth proportional to 673.86, 929.49 and 585.42 is: 807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.86 : 929.49 = 585.42 : x
  2. Step 2: Convert to fraction form
    673.86/929.49 = 585.42/x
  3. Step 3: Cross multiply
    673.86x = 929.49 × 585.42
  4. Step 4: Simplify right side
    673.86x = 544,142.04
  5. Step 5: Solve for x
    x = 544,142.04/673.86
  6. Step 6: Final answer
    x = 807.50

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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.