Home / 1,078,730.70-1,618,818.30-447,645.12

Finding the Fourth Proportional to 1,078,730.70, 1,618,818.30 and 447,645.12

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Solution

The fourth proportional to 1,078,730.70, 1,618,818.30 and 447,645.12 is: 671,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,730.70 : 1,618,818.30 = 447,645.12 : x
  2. Step 2: Convert to fraction form
    1,078,730.70/1,618,818.30 = 447,645.12/x
  3. Step 3: Cross multiply
    1,078,730.70x = 1,618,818.30 × 447,645.12
  4. Step 4: Simplify right side
    1,078,730.70x = 724,656,112,161.70
  5. Step 5: Solve for x
    x = 724,656,112,161.70/1,078,730.70
  6. Step 6: Final answer
    x = 671,767.39

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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.