Home / 790,702.23-1,091,164.48-428,118.60

Finding the Fourth Proportional to 790,702.23, 1,091,164.48 and 428,118.60

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Solution

The fourth proportional to 790,702.23, 1,091,164.48 and 428,118.60 is: 590,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,702.23 : 1,091,164.48 = 428,118.60 : x
  2. Step 2: Convert to fraction form
    790,702.23/1,091,164.48 = 428,118.60/x
  3. Step 3: Cross multiply
    790,702.23x = 1,091,164.48 × 428,118.60
  4. Step 4: Simplify right side
    790,702.23x = 467,147,809,547.33
  5. Step 5: Solve for x
    x = 467,147,809,547.33/790,702.23
  6. Step 6: Final answer
    x = 590,801.18

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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.