Home / 790,607.63-1,091,037.87-428,034.62

Finding the Fourth Proportional to 790,607.63, 1,091,037.87 and 428,034.62

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Solution

The fourth proportional to 790,607.63, 1,091,037.87 and 428,034.62 is: 590,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,607.63 : 1,091,037.87 = 428,034.62 : x
  2. Step 2: Convert to fraction form
    790,607.63/1,091,037.87 = 428,034.62/x
  3. Step 3: Cross multiply
    790,607.63x = 1,091,037.87 × 428,034.62
  4. Step 4: Simplify right side
    790,607.63x = 467,001,980,091.06
  5. Step 5: Solve for x
    x = 467,001,980,091.06/790,607.63
  6. Step 6: Final answer
    x = 590,687.42

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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.