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Finding the Fourth Proportional to 557,558.94, 769,435.02 and 302,910.06

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Solution

The fourth proportional to 557,558.94, 769,435.02 and 302,910.06 is: 418,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,558.94 : 769,435.02 = 302,910.06 : x
  2. Step 2: Convert to fraction form
    557,558.94/769,435.02 = 302,910.06/x
  3. Step 3: Cross multiply
    557,558.94x = 769,435.02 × 302,910.06
  4. Step 4: Simplify right side
    557,558.94x = 233,069,608,074.30
  5. Step 5: Solve for x
    x = 233,069,608,074.30/557,558.94
  6. Step 6: Final answer
    x = 418,017.88

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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.