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Finding the Fourth Proportional to 555,239.56, 766,230.84 and 300,590.74

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Solution

The fourth proportional to 555,239.56, 766,230.84 and 300,590.74 is: 414,815.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,239.56 : 766,230.84 = 300,590.74 : x
  2. Step 2: Convert to fraction form
    555,239.56/766,230.84 = 300,590.74/x
  3. Step 3: Cross multiply
    555,239.56x = 766,230.84 × 300,590.74
  4. Step 4: Simplify right side
    555,239.56x = 230,321,895,206.42
  5. Step 5: Solve for x
    x = 230,321,895,206.42/555,239.56
  6. Step 6: Final answer
    x = 414,815.36

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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.