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Finding the Fourth Proportional to 630,519.80, 945,613.30 and 314,743.80

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Solution

The fourth proportional to 630,519.80, 945,613.30 and 314,743.80 is: 472,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,519.80 : 945,613.30 = 314,743.80 : x
  2. Step 2: Convert to fraction form
    630,519.80/945,613.30 = 314,743.80/x
  3. Step 3: Cross multiply
    630,519.80x = 945,613.30 × 314,743.80
  4. Step 4: Simplify right side
    630,519.80x = 297,625,923,372.54
  5. Step 5: Solve for x
    x = 297,625,923,372.54/630,519.80
  6. Step 6: Final answer
    x = 472,032.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.