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Finding the Fourth Proportional to 554,988.96, 765,887.16 and 300,340.14

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Solution

The fourth proportional to 554,988.96, 765,887.16 and 300,340.14 is: 414,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,988.96 : 765,887.16 = 300,340.14 : x
  2. Step 2: Convert to fraction form
    554,988.96/765,887.16 = 300,340.14/x
  3. Step 3: Cross multiply
    554,988.96x = 765,887.16 × 300,340.14
  4. Step 4: Simplify right side
    554,988.96x = 230,026,656,858.60
  5. Step 5: Solve for x
    x = 230,026,656,858.60/554,988.96
  6. Step 6: Final answer
    x = 414,470.69

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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.