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Finding the Fourth Proportional to 452,403.80, 678,605.70 and 413,696.60

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Solution

The fourth proportional to 452,403.80, 678,605.70 and 413,696.60 is: 620,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,403.80 : 678,605.70 = 413,696.60 : x
  2. Step 2: Convert to fraction form
    452,403.80/678,605.70 = 413,696.60/x
  3. Step 3: Cross multiply
    452,403.80x = 678,605.70 × 413,696.60
  4. Step 4: Simplify right side
    452,403.80x = 280,736,870,830.62
  5. Step 5: Solve for x
    x = 280,736,870,830.62/452,403.80
  6. Step 6: Final answer
    x = 620,544.90

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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.