Home / 810,116.80-1,215,029.40-510,060.40

Finding the Fourth Proportional to 810,116.80, 1,215,029.40 and 510,060.40

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Solution

The fourth proportional to 810,116.80, 1,215,029.40 and 510,060.40 is: 764,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,116.80 : 1,215,029.40 = 510,060.40 : x
  2. Step 2: Convert to fraction form
    810,116.80/1,215,029.40 = 510,060.40/x
  3. Step 3: Cross multiply
    810,116.80x = 1,215,029.40 × 510,060.40
  4. Step 4: Simplify right side
    810,116.80x = 619,738,381,775.76
  5. Step 5: Solve for x
    x = 619,738,381,775.76/810,116.80
  6. Step 6: Final answer
    x = 764,998.80

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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.