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Finding the Fourth Proportional to 479,288.34, 661,407.12 and 264,448.80

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Solution

The fourth proportional to 479,288.34, 661,407.12 and 264,448.80 is: 364,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,288.34 : 661,407.12 = 264,448.80 : x
  2. Step 2: Convert to fraction form
    479,288.34/661,407.12 = 264,448.80/x
  3. Step 3: Cross multiply
    479,288.34x = 661,407.12 × 264,448.80
  4. Step 4: Simplify right side
    479,288.34x = 174,908,319,195.46
  5. Step 5: Solve for x
    x = 174,908,319,195.46/479,288.34
  6. Step 6: Final answer
    x = 364,933.39

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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.