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Finding the Fourth Proportional to 479,245.65, 661,326.26 and 264,389.30

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Solution

The fourth proportional to 479,245.65, 661,326.26 and 264,389.30 is: 364,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,245.65 : 661,326.26 = 264,389.30 : x
  2. Step 2: Convert to fraction form
    479,245.65/661,326.26 = 264,389.30/x
  3. Step 3: Cross multiply
    479,245.65x = 661,326.26 × 264,389.30
  4. Step 4: Simplify right side
    479,245.65x = 174,847,586,953.02
  5. Step 5: Solve for x
    x = 174,847,586,953.02/479,245.65
  6. Step 6: Final answer
    x = 364,839.17

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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.