Home / 830,481.64-1,145,989.54-467,964.52

Finding the Fourth Proportional to 830,481.64, 1,145,989.54 and 467,964.52

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Solution

The fourth proportional to 830,481.64, 1,145,989.54 and 467,964.52 is: 645,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,481.64 : 1,145,989.54 = 467,964.52 : x
  2. Step 2: Convert to fraction form
    830,481.64/1,145,989.54 = 467,964.52/x
  3. Step 3: Cross multiply
    830,481.64x = 1,145,989.54 × 467,964.52
  4. Step 4: Simplify right side
    830,481.64x = 536,282,445,011.12
  5. Step 5: Solve for x
    x = 536,282,445,011.12/830,481.64
  6. Step 6: Final answer
    x = 645,748.71

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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.