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Finding the Fourth Proportional to 455,559.10, 683,338.65 and 366,985.60

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Solution

The fourth proportional to 455,559.10, 683,338.65 and 366,985.60 is: 550,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,559.10 : 683,338.65 = 366,985.60 : x
  2. Step 2: Convert to fraction form
    455,559.10/683,338.65 = 366,985.60/x
  3. Step 3: Cross multiply
    455,559.10x = 683,338.65 × 366,985.60
  4. Step 4: Simplify right side
    455,559.10x = 250,775,444,473.44
  5. Step 5: Solve for x
    x = 250,775,444,473.44/455,559.10
  6. Step 6: Final answer
    x = 550,478.40

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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.