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Finding the Fourth Proportional to 554,759.90, 765,566.07 and 300,108.86

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Solution

The fourth proportional to 554,759.90, 765,566.07 and 300,108.86 is: 414,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,759.90 : 765,566.07 = 300,108.86 : x
  2. Step 2: Convert to fraction form
    554,759.90/765,566.07 = 300,108.86/x
  3. Step 3: Cross multiply
    554,759.90x = 765,566.07 × 300,108.86
  4. Step 4: Simplify right side
    554,759.90x = 229,753,160,522.38
  5. Step 5: Solve for x
    x = 229,753,160,522.38/554,759.90
  6. Step 6: Final answer
    x = 414,148.82

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1.5x scale

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.