Home / 767,846.07-1,059,656.45-428,379.93

Finding the Fourth Proportional to 767,846.07, 1,059,656.45 and 428,379.93

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Solution

The fourth proportional to 767,846.07, 1,059,656.45 and 428,379.93 is: 591,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,846.07 : 1,059,656.45 = 428,379.93 : x
  2. Step 2: Convert to fraction form
    767,846.07/1,059,656.45 = 428,379.93/x
  3. Step 3: Cross multiply
    767,846.07x = 1,059,656.45 × 428,379.93
  4. Step 4: Simplify right side
    767,846.07x = 453,935,553,733.15
  5. Step 5: Solve for x
    x = 453,935,553,733.15/767,846.07
  6. Step 6: Final answer
    x = 591,180.41

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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.