Home / 780,615.84-1,170,062.92-510,631.91

Finding the Fourth Proportional to 780,615.84, 1,170,062.92 and 510,631.91

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Solution

The fourth proportional to 780,615.84, 1,170,062.92 and 510,631.91 is: 765,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,615.84 : 1,170,062.92 = 510,631.91 : x
  2. Step 2: Convert to fraction form
    780,615.84/1,170,062.92 = 510,631.91/x
  3. Step 3: Cross multiply
    780,615.84x = 1,170,062.92 × 510,631.91
  4. Step 4: Simplify right side
    780,615.84x = 597,471,463,659.78
  5. Step 5: Solve for x
    x = 597,471,463,659.78/780,615.84
  6. Step 6: Final answer
    x = 765,384.76

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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.