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Finding the Fourth Proportional to 432,824.88, 647,613.46 and 357,980.28

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Solution

The fourth proportional to 432,824.88, 647,613.46 and 357,980.28 is: 535,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,824.88 : 647,613.46 = 357,980.28 : x
  2. Step 2: Convert to fraction form
    432,824.88/647,613.46 = 357,980.28/x
  3. Step 3: Cross multiply
    432,824.88x = 647,613.46 × 357,980.28
  4. Step 4: Simplify right side
    432,824.88x = 231,832,847,742.57
  5. Step 5: Solve for x
    x = 231,832,847,742.57/432,824.88
  6. Step 6: Final answer
    x = 535,627.36

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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.