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Finding the Fourth Proportional to 670.40, 924.36 and 437.48

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Solution

The fourth proportional to 670.40, 924.36 and 437.48 is: 603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.40 : 924.36 = 437.48 : x
  2. Step 2: Convert to fraction form
    670.40/924.36 = 437.48/x
  3. Step 3: Cross multiply
    670.40x = 924.36 × 437.48
  4. Step 4: Simplify right side
    670.40x = 404,389.01
  5. Step 5: Solve for x
    x = 404,389.01/670.40
  6. Step 6: Final answer
    x = 603.21

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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.