Home / 769,096.98-1,153,183.59-319,274.82

Finding the Fourth Proportional to 769,096.98, 1,153,183.59 and 319,274.82

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Solution

The fourth proportional to 769,096.98, 1,153,183.59 and 319,274.82 is: 478,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,096.98 : 1,153,183.59 = 319,274.82 : x
  2. Step 2: Convert to fraction form
    769,096.98/1,153,183.59 = 319,274.82/x
  3. Step 3: Cross multiply
    769,096.98x = 1,153,183.59 × 319,274.82
  4. Step 4: Simplify right side
    769,096.98x = 368,182,483,124.20
  5. Step 5: Solve for x
    x = 368,182,483,124.20/769,096.98
  6. Step 6: Final answer
    x = 478,720.49

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.