Home / 1,289,346.80-1,934,019.84-402,882.80

Finding the Fourth Proportional to 1,289,346.80, 1,934,019.84 and 402,882.80

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Solution

The fourth proportional to 1,289,346.80, 1,934,019.84 and 402,882.80 is: 604,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,346.80 : 1,934,019.84 = 402,882.80 : x
  2. Step 2: Convert to fraction form
    1,289,346.80/1,934,019.84 = 402,882.80/x
  3. Step 3: Cross multiply
    1,289,346.80x = 1,934,019.84 × 402,882.80
  4. Step 4: Simplify right side
    1,289,346.80x = 779,183,328,394.75
  5. Step 5: Solve for x
    x = 779,183,328,394.75/1,289,346.80
  6. Step 6: Final answer
    x = 604,324.09

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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.