Home / 456,825.65-684,853.12-287,973.83

Finding the Fourth Proportional to 456,825.65, 684,853.12 and 287,973.83

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Solution

The fourth proportional to 456,825.65, 684,853.12 and 287,973.83 is: 431,717.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,825.65 : 684,853.12 = 287,973.83 : x
  2. Step 2: Convert to fraction form
    456,825.65/684,853.12 = 287,973.83/x
  3. Step 3: Cross multiply
    456,825.65x = 684,853.12 × 287,973.83
  4. Step 4: Simplify right side
    456,825.65x = 197,219,775,953.85
  5. Step 5: Solve for x
    x = 197,219,775,953.85/456,825.65
  6. Step 6: Final answer
    x = 431,717.82

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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.