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Finding the Fourth Proportional to 586,179.76, 809,080.12 and 331,678.56

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Solution

The fourth proportional to 586,179.76, 809,080.12 and 331,678.56 is: 457,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,179.76 : 809,080.12 = 331,678.56 : x
  2. Step 2: Convert to fraction form
    586,179.76/809,080.12 = 331,678.56/x
  3. Step 3: Cross multiply
    586,179.76x = 809,080.12 × 331,678.56
  4. Step 4: Simplify right side
    586,179.76x = 268,354,529,126.23
  5. Step 5: Solve for x
    x = 268,354,529,126.23/586,179.76
  6. Step 6: Final answer
    x = 457,802.45

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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.