Home / 768,935.34-1,061,129.97-429,403.86

Finding the Fourth Proportional to 768,935.34, 1,061,129.97 and 429,403.86

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Solution

The fourth proportional to 768,935.34, 1,061,129.97 and 429,403.86 is: 592,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,935.34 : 1,061,129.97 = 429,403.86 : x
  2. Step 2: Convert to fraction form
    768,935.34/1,061,129.97 = 429,403.86/x
  3. Step 3: Cross multiply
    768,935.34x = 1,061,129.97 × 429,403.86
  4. Step 4: Simplify right side
    768,935.34x = 455,653,305,079.68
  5. Step 5: Solve for x
    x = 455,653,305,079.68/768,935.34
  6. Step 6: Final answer
    x = 592,576.88

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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.