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Finding the Fourth Proportional to 641,680.86, 963,467.48 and 357,925.82

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Solution

The fourth proportional to 641,680.86, 963,467.48 and 357,925.82 is: 537,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,680.86 : 963,467.48 = 357,925.82 : x
  2. Step 2: Convert to fraction form
    641,680.86/963,467.48 = 357,925.82/x
  3. Step 3: Cross multiply
    641,680.86x = 963,467.48 × 357,925.82
  4. Step 4: Simplify right side
    641,680.86x = 344,849,887,822.33
  5. Step 5: Solve for x
    x = 344,849,887,822.33/641,680.86
  6. Step 6: Final answer
    x = 537,416.51

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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.