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Finding the Fourth Proportional to 670.32, 923.58 and 483.48

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Solution

The fourth proportional to 670.32, 923.58 and 483.48 is: 666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.32 : 923.58 = 483.48 : x
  2. Step 2: Convert to fraction form
    670.32/923.58 = 483.48/x
  3. Step 3: Cross multiply
    670.32x = 923.58 × 483.48
  4. Step 4: Simplify right side
    670.32x = 446,532.46
  5. Step 5: Solve for x
    x = 446,532.46/670.32
  6. Step 6: Final answer
    x = 666.15

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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.