Home / 790,593.36-1,091,011.20-428,007.92

Finding the Fourth Proportional to 790,593.36, 1,091,011.20 and 428,007.92

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Solution

The fourth proportional to 790,593.36, 1,091,011.20 and 428,007.92 is: 590,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,593.36 : 1,091,011.20 = 428,007.92 : x
  2. Step 2: Convert to fraction form
    790,593.36/1,091,011.20 = 428,007.92/x
  3. Step 3: Cross multiply
    790,593.36x = 1,091,011.20 × 428,007.92
  4. Step 4: Simplify right side
    790,593.36x = 466,961,434,408.70
  5. Step 5: Solve for x
    x = 466,961,434,408.70/790,593.36
  6. Step 6: Final answer
    x = 590,646.80

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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.