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Finding the Fourth Proportional to 630,633.60, 945,950.40 and 406,684.80

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Solution

The fourth proportional to 630,633.60, 945,950.40 and 406,684.80 is: 610,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,633.60 : 945,950.40 = 406,684.80 : x
  2. Step 2: Convert to fraction form
    630,633.60/945,950.40 = 406,684.80/x
  3. Step 3: Cross multiply
    630,633.60x = 945,950.40 × 406,684.80
  4. Step 4: Simplify right side
    630,633.60x = 384,703,649,233.92
  5. Step 5: Solve for x
    x = 384,703,649,233.92/630,633.60
  6. Step 6: Final answer
    x = 610,027.20

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Similar ratio
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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.