Home / 1,326,985.03-1,990,478.91-329,713.03

Finding the Fourth Proportional to 1,326,985.03, 1,990,478.91 and 329,713.03

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Solution

The fourth proportional to 1,326,985.03, 1,990,478.91 and 329,713.03 is: 494,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,985.03 : 1,990,478.91 = 329,713.03 : x
  2. Step 2: Convert to fraction form
    1,326,985.03/1,990,478.91 = 329,713.03/x
  3. Step 3: Cross multiply
    1,326,985.03x = 1,990,478.91 × 329,713.03
  4. Step 4: Simplify right side
    1,326,985.03x = 656,286,836,291.72
  5. Step 5: Solve for x
    x = 656,286,836,291.72/1,326,985.03
  6. Step 6: Final answer
    x = 494,569.89

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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.