Home / 790,639.31-1,091,069.01-428,060.22

Finding the Fourth Proportional to 790,639.31, 1,091,069.01 and 428,060.22

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Solution

The fourth proportional to 790,639.31, 1,091,069.01 and 428,060.22 is: 590,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,639.31 : 1,091,069.01 = 428,060.22 : x
  2. Step 2: Convert to fraction form
    790,639.31/1,091,069.01 = 428,060.22/x
  3. Step 3: Cross multiply
    790,639.31x = 1,091,069.01 × 428,060.22
  4. Step 4: Simplify right side
    790,639.31x = 467,043,244,253.61
  5. Step 5: Solve for x
    x = 467,043,244,253.61/790,639.31
  6. Step 6: Final answer
    x = 590,715.94

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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.