Home / 1,207,825-1,666,819.56-663,983.71

Finding the Fourth Proportional to 1,207,825, 1,666,819.56 and 663,983.71

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Solution

The fourth proportional to 1,207,825, 1,666,819.56 and 663,983.71 is: 916,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,825 : 1,666,819.56 = 663,983.71 : x
  2. Step 2: Convert to fraction form
    1,207,825/1,666,819.56 = 663,983.71/x
  3. Step 3: Cross multiply
    1,207,825x = 1,666,819.56 × 663,983.71
  4. Step 4: Simplify right side
    1,207,825x = 1,106,741,035,349.37
  5. Step 5: Solve for x
    x = 1,106,741,035,349.37/1,207,825
  6. Step 6: Final answer
    x = 916,309.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.