Home / 746,538.60-1,030,238.74-419,857.88

Finding the Fourth Proportional to 746,538.60, 1,030,238.74 and 419,857.88

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Solution

The fourth proportional to 746,538.60, 1,030,238.74 and 419,857.88 is: 579,412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,538.60 : 1,030,238.74 = 419,857.88 : x
  2. Step 2: Convert to fraction form
    746,538.60/1,030,238.74 = 419,857.88/x
  3. Step 3: Cross multiply
    746,538.60x = 1,030,238.74 × 419,857.88
  4. Step 4: Simplify right side
    746,538.60x = 432,553,853,270.27
  5. Step 5: Solve for x
    x = 432,553,853,270.27/746,538.60
  6. Step 6: Final answer
    x = 579,412.58

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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.