Home / 1,078,658.60-1,618,571.10-447,636.20

Finding the Fourth Proportional to 1,078,658.60, 1,618,571.10 and 447,636.20

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Solution

The fourth proportional to 1,078,658.60, 1,618,571.10 and 447,636.20 is: 671,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,658.60 : 1,618,571.10 = 447,636.20 : x
  2. Step 2: Convert to fraction form
    1,078,658.60/1,618,571.10 = 447,636.20/x
  3. Step 3: Cross multiply
    1,078,658.60x = 1,618,571.10 × 447,636.20
  4. Step 4: Simplify right side
    1,078,658.60x = 724,531,016,633.82
  5. Step 5: Solve for x
    x = 724,531,016,633.82/1,078,658.60
  6. Step 6: Final answer
    x = 671,696.32

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Double scale
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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.