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Finding the Fourth Proportional to 554,968.34, 765,856.30 and 300,319.52

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Solution

The fourth proportional to 554,968.34, 765,856.30 and 300,319.52 is: 414,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,968.34 : 765,856.30 = 300,319.52 : x
  2. Step 2: Convert to fraction form
    554,968.34/765,856.30 = 300,319.52/x
  3. Step 3: Cross multiply
    554,968.34x = 765,856.30 × 300,319.52
  4. Step 4: Simplify right side
    554,968.34x = 230,001,600,116.88
  5. Step 5: Solve for x
    x = 230,001,600,116.88/554,968.34
  6. Step 6: Final answer
    x = 414,440.94

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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.