Home / 1,678,389.78-2,519,779.90-996,521.45

Finding the Fourth Proportional to 1,678,389.78, 2,519,779.90 and 996,521.45

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Solution

The fourth proportional to 1,678,389.78, 2,519,779.90 and 996,521.45 is: 1,496,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,389.78 : 2,519,779.90 = 996,521.45 : x
  2. Step 2: Convert to fraction form
    1,678,389.78/2,519,779.90 = 996,521.45/x
  3. Step 3: Cross multiply
    1,678,389.78x = 2,519,779.90 × 996,521.45
  4. Step 4: Simplify right side
    1,678,389.78x = 2,511,014,710,838.10
  5. Step 5: Solve for x
    x = 2,511,014,710,838.10/1,678,389.78
  6. Step 6: Final answer
    x = 1,496,085.56

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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.