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Finding the Fourth Proportional to 670.05, 923.28 and 433.71

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Solution

The fourth proportional to 670.05, 923.28 and 433.71 is: 597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.05 : 923.28 = 433.71 : x
  2. Step 2: Convert to fraction form
    670.05/923.28 = 433.71/x
  3. Step 3: Cross multiply
    670.05x = 923.28 × 433.71
  4. Step 4: Simplify right side
    670.05x = 400,435.77
  5. Step 5: Solve for x
    x = 400,435.77/670.05
  6. Step 6: Final answer
    x = 597.62

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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.