Home / 669,371.48-923,728.38-382,896.32

Finding the Fourth Proportional to 669,371.48, 923,728.38 and 382,896.32

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Solution

The fourth proportional to 669,371.48, 923,728.38 and 382,896.32 is: 528,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,371.48 : 923,728.38 = 382,896.32 : x
  2. Step 2: Convert to fraction form
    669,371.48/923,728.38 = 382,896.32/x
  3. Step 3: Cross multiply
    669,371.48x = 923,728.38 × 382,896.32
  4. Step 4: Simplify right side
    669,371.48x = 353,692,197,381.56
  5. Step 5: Solve for x
    x = 353,692,197,381.56/669,371.48
  6. Step 6: Final answer
    x = 528,394.48

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Double scale
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Similar ratio
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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.