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Finding the Fourth Proportional to 554,760.40, 765,567.68 and 300,111.52

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Solution

The fourth proportional to 554,760.40, 765,567.68 and 300,111.52 is: 414,152.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,760.40 : 765,567.68 = 300,111.52 : x
  2. Step 2: Convert to fraction form
    554,760.40/765,567.68 = 300,111.52/x
  3. Step 3: Cross multiply
    554,760.40x = 765,567.68 × 300,111.52
  4. Step 4: Simplify right side
    554,760.40x = 229,755,680,107.67
  5. Step 5: Solve for x
    x = 229,755,680,107.67/554,760.40
  6. Step 6: Final answer
    x = 414,152.99

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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.