Home / 1,478,828.40-2,218,235.40-579,634.80

Finding the Fourth Proportional to 1,478,828.40, 2,218,235.40 and 579,634.80

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Solution

The fourth proportional to 1,478,828.40, 2,218,235.40 and 579,634.80 is: 869,449.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,828.40 : 2,218,235.40 = 579,634.80 : x
  2. Step 2: Convert to fraction form
    1,478,828.40/2,218,235.40 = 579,634.80/x
  3. Step 3: Cross multiply
    1,478,828.40x = 2,218,235.40 × 579,634.80
  4. Step 4: Simplify right side
    1,478,828.40x = 1,285,766,432,431.92
  5. Step 5: Solve for x
    x = 1,285,766,432,431.92/1,478,828.40
  6. Step 6: Final answer
    x = 869,449.38

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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.