Home / 1,006,230.78-1,388,619.99-553,521.78

Finding the Fourth Proportional to 1,006,230.78, 1,388,619.99 and 553,521.78

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Solution

The fourth proportional to 1,006,230.78, 1,388,619.99 and 553,521.78 is: 763,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,230.78 : 1,388,619.99 = 553,521.78 : x
  2. Step 2: Convert to fraction form
    1,006,230.78/1,388,619.99 = 553,521.78/x
  3. Step 3: Cross multiply
    1,006,230.78x = 1,388,619.99 × 553,521.78
  4. Step 4: Simplify right side
    1,006,230.78x = 768,631,408,608.38
  5. Step 5: Solve for x
    x = 768,631,408,608.38/1,006,230.78
  6. Step 6: Final answer
    x = 763,871.89

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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.