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Finding the Fourth Proportional to 555,001.80, 765,904.91 and 300,353.02

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Solution

The fourth proportional to 555,001.80, 765,904.91 and 300,353.02 is: 414,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,001.80 : 765,904.91 = 300,353.02 : x
  2. Step 2: Convert to fraction form
    555,001.80/765,904.91 = 300,353.02/x
  3. Step 3: Cross multiply
    555,001.80x = 765,904.91 × 300,353.02
  4. Step 4: Simplify right side
    555,001.80x = 230,041,852,751.33
  5. Step 5: Solve for x
    x = 230,041,852,751.33/555,001.80
  6. Step 6: Final answer
    x = 414,488.48

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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.