Home / 496,559.36-685,484.16-317,815.04

Finding the Fourth Proportional to 496,559.36, 685,484.16 and 317,815.04

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Solution

The fourth proportional to 496,559.36, 685,484.16 and 317,815.04 is: 438,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,559.36 : 685,484.16 = 317,815.04 : x
  2. Step 2: Convert to fraction form
    496,559.36/685,484.16 = 317,815.04/x
  3. Step 3: Cross multiply
    496,559.36x = 685,484.16 × 317,815.04
  4. Step 4: Simplify right side
    496,559.36x = 217,857,175,729.77
  5. Step 5: Solve for x
    x = 217,857,175,729.77/496,559.36
  6. Step 6: Final answer
    x = 438,733.40

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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.