Home / 830,716.72-1,146,771.78-486,504.82

Finding the Fourth Proportional to 830,716.72, 1,146,771.78 and 486,504.82

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Solution

The fourth proportional to 830,716.72, 1,146,771.78 and 486,504.82 is: 671,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,716.72 : 1,146,771.78 = 486,504.82 : x
  2. Step 2: Convert to fraction form
    830,716.72/1,146,771.78 = 486,504.82/x
  3. Step 3: Cross multiply
    830,716.72x = 1,146,771.78 × 486,504.82
  4. Step 4: Simplify right side
    830,716.72x = 557,909,998,409.98
  5. Step 5: Solve for x
    x = 557,909,998,409.98/830,716.72
  6. Step 6: Final answer
    x = 671,600.78

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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.