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Finding the Fourth Proportional to 555,645.74, 766,794.72 and 300,996.74

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Solution

The fourth proportional to 555,645.74, 766,794.72 and 300,996.74 is: 415,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,645.74 : 766,794.72 = 300,996.74 : x
  2. Step 2: Convert to fraction form
    555,645.74/766,794.72 = 300,996.74/x
  3. Step 3: Cross multiply
    555,645.74x = 766,794.72 × 300,996.74
  4. Step 4: Simplify right side
    555,645.74x = 230,802,710,969.21
  5. Step 5: Solve for x
    x = 230,802,710,969.21/555,645.74
  6. Step 6: Final answer
    x = 415,377.45

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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.