Home / 1,786,285.52-2,679,430.44-489,449

Finding the Fourth Proportional to 1,786,285.52, 2,679,430.44 and 489,449

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Solution

The fourth proportional to 1,786,285.52, 2,679,430.44 and 489,449 is: 734,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,285.52 : 2,679,430.44 = 489,449 : x
  2. Step 2: Convert to fraction form
    1,786,285.52/2,679,430.44 = 489,449/x
  3. Step 3: Cross multiply
    1,786,285.52x = 2,679,430.44 × 489,449
  4. Step 4: Simplify right side
    1,786,285.52x = 1,311,444,549,427.56
  5. Step 5: Solve for x
    x = 1,311,444,549,427.56/1,786,285.52
  6. Step 6: Final answer
    x = 734,174.09

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1.5x scale

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.