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Finding the Fourth Proportional to 554,953.03, 765,840.65 and 300,309.69

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Solution

The fourth proportional to 554,953.03, 765,840.65 and 300,309.69 is: 414,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,953.03 : 765,840.65 = 300,309.69 : x
  2. Step 2: Convert to fraction form
    554,953.03/765,840.65 = 300,309.69/x
  3. Step 3: Cross multiply
    554,953.03x = 765,840.65 × 300,309.69
  4. Step 4: Simplify right side
    554,953.03x = 229,989,365,506.69
  5. Step 5: Solve for x
    x = 229,989,365,506.69/554,953.03
  6. Step 6: Final answer
    x = 414,430.33

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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.