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Finding the Fourth Proportional to 555,223.54, 766,208.74 and 300,574.74

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Solution

The fourth proportional to 555,223.54, 766,208.74 and 300,574.74 is: 414,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,223.54 : 766,208.74 = 300,574.74 : x
  2. Step 2: Convert to fraction form
    555,223.54/766,208.74 = 300,574.74/x
  3. Step 3: Cross multiply
    555,223.54x = 766,208.74 × 300,574.74
  4. Step 4: Simplify right side
    555,223.54x = 230,302,992,811.23
  5. Step 5: Solve for x
    x = 230,302,992,811.23/555,223.54
  6. Step 6: Final answer
    x = 414,793.28

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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.