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Finding the Fourth Proportional to 557,271.60, 769,157.28 and 366,302.76

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Solution

The fourth proportional to 557,271.60, 769,157.28 and 366,302.76 is: 505,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,271.60 : 769,157.28 = 366,302.76 : x
  2. Step 2: Convert to fraction form
    557,271.60/769,157.28 = 366,302.76/x
  3. Step 3: Cross multiply
    557,271.60x = 769,157.28 × 366,302.76
  4. Step 4: Simplify right side
    557,271.60x = 281,744,434,538.09
  5. Step 5: Solve for x
    x = 281,744,434,538.09/557,271.60
  6. Step 6: Final answer
    x = 505,578.31

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