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Finding the Fourth Proportional to 515,582.52, 711,344.43 and 300,570.36

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Solution

The fourth proportional to 515,582.52, 711,344.43 and 300,570.36 is: 414,694.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,582.52 : 711,344.43 = 300,570.36 : x
  2. Step 2: Convert to fraction form
    515,582.52/711,344.43 = 300,570.36/x
  3. Step 3: Cross multiply
    515,582.52x = 711,344.43 × 300,570.36
  4. Step 4: Simplify right side
    515,582.52x = 213,809,051,409.10
  5. Step 5: Solve for x
    x = 213,809,051,409.10/515,582.52
  6. Step 6: Final answer
    x = 414,694.14

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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.