Home / 790,698.42-1,091,165.94-428,126.76

Finding the Fourth Proportional to 790,698.42, 1,091,165.94 and 428,126.76

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Solution

The fourth proportional to 790,698.42, 1,091,165.94 and 428,126.76 is: 590,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,698.42 : 1,091,165.94 = 428,126.76 : x
  2. Step 2: Convert to fraction form
    790,698.42/1,091,165.94 = 428,126.76/x
  3. Step 3: Cross multiply
    790,698.42x = 1,091,165.94 × 428,126.76
  4. Step 4: Simplify right side
    790,698.42x = 467,157,338,514.55
  5. Step 5: Solve for x
    x = 467,157,338,514.55/790,698.42
  6. Step 6: Final answer
    x = 590,816.08

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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.