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Finding the Fourth Proportional to 670.82, 924.82 and 473.99

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Solution

The fourth proportional to 670.82, 924.82 and 473.99 is: 653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.82 : 924.82 = 473.99 : x
  2. Step 2: Convert to fraction form
    670.82/924.82 = 473.99/x
  3. Step 3: Cross multiply
    670.82x = 924.82 × 473.99
  4. Step 4: Simplify right side
    670.82x = 438,349.62
  5. Step 5: Solve for x
    x = 438,349.62/670.82
  6. Step 6: Final answer
    x = 653.46

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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.