Home / 790,656.10-1,091,103.97-428,079.91

Finding the Fourth Proportional to 790,656.10, 1,091,103.97 and 428,079.91

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Solution

The fourth proportional to 790,656.10, 1,091,103.97 and 428,079.91 is: 590,749.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,656.10 : 1,091,103.97 = 428,079.91 : x
  2. Step 2: Convert to fraction form
    790,656.10/1,091,103.97 = 428,079.91/x
  3. Step 3: Cross multiply
    790,656.10x = 1,091,103.97 × 428,079.91
  4. Step 4: Simplify right side
    790,656.10x = 467,079,689,278.24
  5. Step 5: Solve for x
    x = 467,079,689,278.24/790,656.10
  6. Step 6: Final answer
    x = 590,749.49

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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.