Home / 790,965.65-1,091,532.27-428,389.53

Finding the Fourth Proportional to 790,965.65, 1,091,532.27 and 428,389.53

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Solution

The fourth proportional to 790,965.65, 1,091,532.27 and 428,389.53 is: 591,177.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,965.65 : 1,091,532.27 = 428,389.53 : x
  2. Step 2: Convert to fraction form
    790,965.65/1,091,532.27 = 428,389.53/x
  3. Step 3: Cross multiply
    790,965.65x = 1,091,532.27 × 428,389.53
  4. Step 4: Simplify right side
    790,965.65x = 467,600,993,983.19
  5. Step 5: Solve for x
    x = 467,600,993,983.19/790,965.65
  6. Step 6: Final answer
    x = 591,177.37

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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.