Home / 1,078,716.60-1,618,658.10-447,694.20

Finding the Fourth Proportional to 1,078,716.60, 1,618,658.10 and 447,694.20

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Solution

The fourth proportional to 1,078,716.60, 1,618,658.10 and 447,694.20 is: 671,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,716.60 : 1,618,658.10 = 447,694.20 : x
  2. Step 2: Convert to fraction form
    1,078,716.60/1,618,658.10 = 447,694.20/x
  3. Step 3: Cross multiply
    1,078,716.60x = 1,618,658.10 × 447,694.20
  4. Step 4: Simplify right side
    1,078,716.60x = 724,663,843,153.02
  5. Step 5: Solve for x
    x = 724,663,843,153.02/1,078,716.60
  6. Step 6: Final answer
    x = 671,783.34

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Double scale
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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.