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Finding the Fourth Proportional to 491,270.40, 736,905.60 and 453,945.60

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Solution

The fourth proportional to 491,270.40, 736,905.60 and 453,945.60 is: 680,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,270.40 : 736,905.60 = 453,945.60 : x
  2. Step 2: Convert to fraction form
    491,270.40/736,905.60 = 453,945.60/x
  3. Step 3: Cross multiply
    491,270.40x = 736,905.60 × 453,945.60
  4. Step 4: Simplify right side
    491,270.40x = 334,515,054,735.36
  5. Step 5: Solve for x
    x = 334,515,054,735.36/491,270.40
  6. Step 6: Final answer
    x = 680,918.40

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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.