Home / 810,750.88-1,214,939.76-456,456.16

Finding the Fourth Proportional to 810,750.88, 1,214,939.76 and 456,456.16

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Solution

The fourth proportional to 810,750.88, 1,214,939.76 and 456,456.16 is: 684,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,750.88 : 1,214,939.76 = 456,456.16 : x
  2. Step 2: Convert to fraction form
    810,750.88/1,214,939.76 = 456,456.16/x
  3. Step 3: Cross multiply
    810,750.88x = 1,214,939.76 × 456,456.16
  4. Step 4: Simplify right side
    810,750.88x = 554,566,737,480.92
  5. Step 5: Solve for x
    x = 554,566,737,480.92/810,750.88
  6. Step 6: Final answer
    x = 684,016.20

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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.