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Finding the Fourth Proportional to 554,894.80, 765,752.88 and 300,244.88

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Solution

The fourth proportional to 554,894.80, 765,752.88 and 300,244.88 is: 414,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,894.80 : 765,752.88 = 300,244.88 : x
  2. Step 2: Convert to fraction form
    554,894.80/765,752.88 = 300,244.88/x
  3. Step 3: Cross multiply
    554,894.80x = 765,752.88 × 300,244.88
  4. Step 4: Simplify right side
    554,894.80x = 229,913,381,565.25
  5. Step 5: Solve for x
    x = 229,913,381,565.25/554,894.80
  6. Step 6: Final answer
    x = 414,336.88

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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.