Home / 921,176.46-1,382,179.42-499,820.94

Finding the Fourth Proportional to 921,176.46, 1,382,179.42 and 499,820.94

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Solution

The fourth proportional to 921,176.46, 1,382,179.42 and 499,820.94 is: 749,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,176.46 : 1,382,179.42 = 499,820.94 : x
  2. Step 2: Convert to fraction form
    921,176.46/1,382,179.42 = 499,820.94/x
  3. Step 3: Cross multiply
    921,176.46x = 1,382,179.42 × 499,820.94
  4. Step 4: Simplify right side
    921,176.46x = 690,842,216,953.06
  5. Step 5: Solve for x
    x = 690,842,216,953.06/921,176.46
  6. Step 6: Final answer
    x = 749,956.44

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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.