Home / 790,835.86-1,091,354.07-428,260.12

Finding the Fourth Proportional to 790,835.86, 1,091,354.07 and 428,260.12

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Solution

The fourth proportional to 790,835.86, 1,091,354.07 and 428,260.12 is: 590,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,835.86 : 1,091,354.07 = 428,260.12 : x
  2. Step 2: Convert to fraction form
    790,835.86/1,091,354.07 = 428,260.12/x
  3. Step 3: Cross multiply
    790,835.86x = 1,091,354.07 × 428,260.12
  4. Step 4: Simplify right side
    790,835.86x = 467,383,424,980.69
  5. Step 5: Solve for x
    x = 467,383,424,980.69/790,835.86
  6. Step 6: Final answer
    x = 590,999.28

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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.