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Finding the Fourth Proportional to 554,982.84, 765,878.73 and 300,334.05

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Solution

The fourth proportional to 554,982.84, 765,878.73 and 300,334.05 is: 414,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,982.84 : 765,878.73 = 300,334.05 : x
  2. Step 2: Convert to fraction form
    554,982.84/765,878.73 = 300,334.05/x
  3. Step 3: Cross multiply
    554,982.84x = 765,878.73 × 300,334.05
  4. Step 4: Simplify right side
    554,982.84x = 230,019,460,789.76
  5. Step 5: Solve for x
    x = 230,019,460,789.76/554,982.84
  6. Step 6: Final answer
    x = 414,462.29

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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.