Home / 790,905.48-1,091,444.07-428,321.04

Finding the Fourth Proportional to 790,905.48, 1,091,444.07 and 428,321.04

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Solution

The fourth proportional to 790,905.48, 1,091,444.07 and 428,321.04 is: 591,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,905.48 : 1,091,444.07 = 428,321.04 : x
  2. Step 2: Convert to fraction form
    790,905.48/1,091,444.07 = 428,321.04/x
  3. Step 3: Cross multiply
    790,905.48x = 1,091,444.07 × 428,321.04
  4. Step 4: Simplify right side
    790,905.48x = 467,488,459,164.23
  5. Step 5: Solve for x
    x = 467,488,459,164.23/790,905.48
  6. Step 6: Final answer
    x = 591,080.06

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1.5x scale

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.