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Finding the Fourth Proportional to 673.99, 929.07 and 437.87

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Solution

The fourth proportional to 673.99, 929.07 and 437.87 is: 603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.99 : 929.07 = 437.87 : x
  2. Step 2: Convert to fraction form
    673.99/929.07 = 437.87/x
  3. Step 3: Cross multiply
    673.99x = 929.07 × 437.87
  4. Step 4: Simplify right side
    673.99x = 406,814.20
  5. Step 5: Solve for x
    x = 406,814.20/673.99
  6. Step 6: Final answer
    x = 603.59

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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.