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Finding the Fourth Proportional to 557,613.76, 769,504.98 and 302,962.72

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Solution

The fourth proportional to 557,613.76, 769,504.98 and 302,962.72 is: 418,087.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,613.76 : 769,504.98 = 302,962.72 : x
  2. Step 2: Convert to fraction form
    557,613.76/769,504.98 = 302,962.72/x
  3. Step 3: Cross multiply
    557,613.76x = 769,504.98 × 302,962.72
  4. Step 4: Simplify right side
    557,613.76x = 233,131,321,794.35
  5. Step 5: Solve for x
    x = 233,131,321,794.35/557,613.76
  6. Step 6: Final answer
    x = 418,087.46

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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.