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Finding the Fourth Proportional to 455,527.80, 682,307.55 and 376,795.80

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Solution

The fourth proportional to 455,527.80, 682,307.55 and 376,795.80 is: 564,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,527.80 : 682,307.55 = 376,795.80 : x
  2. Step 2: Convert to fraction form
    455,527.80/682,307.55 = 376,795.80/x
  3. Step 3: Cross multiply
    455,527.80x = 682,307.55 × 376,795.80
  4. Step 4: Simplify right side
    455,527.80x = 257,090,619,148.29
  5. Step 5: Solve for x
    x = 257,090,619,148.29/455,527.80
  6. Step 6: Final answer
    x = 564,379.65

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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.