Home / 820,190.04-1,131,863.36-480,658

Finding the Fourth Proportional to 820,190.04, 1,131,863.36 and 480,658

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Solution

The fourth proportional to 820,190.04, 1,131,863.36 and 480,658 is: 663,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,190.04 : 1,131,863.36 = 480,658 : x
  2. Step 2: Convert to fraction form
    820,190.04/1,131,863.36 = 480,658/x
  3. Step 3: Cross multiply
    820,190.04x = 1,131,863.36 × 480,658
  4. Step 4: Simplify right side
    820,190.04x = 544,039,178,890.88
  5. Step 5: Solve for x
    x = 544,039,178,890.88/820,190.04
  6. Step 6: Final answer
    x = 663,308.69

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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.