Home / 805,497.86-1,111,310.34-499,464.02

Finding the Fourth Proportional to 805,497.86, 1,111,310.34 and 499,464.02

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Solution

The fourth proportional to 805,497.86, 1,111,310.34 and 499,464.02 is: 689,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,497.86 : 1,111,310.34 = 499,464.02 : x
  2. Step 2: Convert to fraction form
    805,497.86/1,111,310.34 = 499,464.02/x
  3. Step 3: Cross multiply
    805,497.86x = 1,111,310.34 × 499,464.02
  4. Step 4: Simplify right side
    805,497.86x = 555,059,529,883.97
  5. Step 5: Solve for x
    x = 555,059,529,883.97/805,497.86
  6. Step 6: Final answer
    x = 689,088.77

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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.