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Finding the Fourth Proportional to 554,943.79, 765,824.45 and 300,294.98

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Solution

The fourth proportional to 554,943.79, 765,824.45 and 300,294.98 is: 414,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,943.79 : 765,824.45 = 300,294.98 : x
  2. Step 2: Convert to fraction form
    554,943.79/765,824.45 = 300,294.98/x
  3. Step 3: Cross multiply
    554,943.79x = 765,824.45 × 300,294.98
  4. Step 4: Simplify right side
    554,943.79x = 229,973,232,565.66
  5. Step 5: Solve for x
    x = 229,973,232,565.66/554,943.79
  6. Step 6: Final answer
    x = 414,408.16

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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.