Home / 1,211,307.62-1,671,678.98-667,443.27

Finding the Fourth Proportional to 1,211,307.62, 1,671,678.98 and 667,443.27

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Solution

The fourth proportional to 1,211,307.62, 1,671,678.98 and 667,443.27 is: 921,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,307.62 : 1,671,678.98 = 667,443.27 : x
  2. Step 2: Convert to fraction form
    1,211,307.62/1,671,678.98 = 667,443.27/x
  3. Step 3: Cross multiply
    1,211,307.62x = 1,671,678.98 × 667,443.27
  4. Step 4: Simplify right side
    1,211,307.62x = 1,115,750,885,999.30
  5. Step 5: Solve for x
    x = 1,115,750,885,999.30/1,211,307.62
  6. Step 6: Final answer
    x = 921,112.74

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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.