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Finding the Fourth Proportional to 554,577.32, 765,317.21 and 299,928.51

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Solution

The fourth proportional to 554,577.32, 765,317.21 and 299,928.51 is: 413,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,577.32 : 765,317.21 = 299,928.51 : x
  2. Step 2: Convert to fraction form
    554,577.32/765,317.21 = 299,928.51/x
  3. Step 3: Cross multiply
    554,577.32x = 765,317.21 × 299,928.51
  4. Step 4: Simplify right side
    554,577.32x = 229,540,451,222.48
  5. Step 5: Solve for x
    x = 229,540,451,222.48/554,577.32
  6. Step 6: Final answer
    x = 413,901.62

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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.