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Finding the Fourth Proportional to 464,609.22, 640,482.06 and 328,402.86

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Solution

The fourth proportional to 464,609.22, 640,482.06 and 328,402.86 is: 452,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,609.22 : 640,482.06 = 328,402.86 : x
  2. Step 2: Convert to fraction form
    464,609.22/640,482.06 = 328,402.86/x
  3. Step 3: Cross multiply
    464,609.22x = 640,482.06 × 328,402.86
  4. Step 4: Simplify right side
    464,609.22x = 210,336,140,282.69
  5. Step 5: Solve for x
    x = 210,336,140,282.69/464,609.22
  6. Step 6: Final answer
    x = 452,716.24

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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.