Home / 810,274.92-1,118,187.98-447,689.76

Finding the Fourth Proportional to 810,274.92, 1,118,187.98 and 447,689.76

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Solution

The fourth proportional to 810,274.92, 1,118,187.98 and 447,689.76 is: 617,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,274.92 : 1,118,187.98 = 447,689.76 : x
  2. Step 2: Convert to fraction form
    810,274.92/1,118,187.98 = 447,689.76/x
  3. Step 3: Cross multiply
    810,274.92x = 1,118,187.98 × 447,689.76
  4. Step 4: Simplify right side
    810,274.92x = 500,601,306,162.64
  5. Step 5: Solve for x
    x = 500,601,306,162.64/810,274.92
  6. Step 6: Final answer
    x = 617,816.61

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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.