Home / 820,117.89-1,131,790.73-475,927.29

Finding the Fourth Proportional to 820,117.89, 1,131,790.73 and 475,927.29

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Solution

The fourth proportional to 820,117.89, 1,131,790.73 and 475,927.29 is: 656,795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,117.89 : 1,131,790.73 = 475,927.29 : x
  2. Step 2: Convert to fraction form
    820,117.89/1,131,790.73 = 475,927.29/x
  3. Step 3: Cross multiply
    820,117.89x = 1,131,790.73 × 475,927.29
  4. Step 4: Simplify right side
    820,117.89x = 538,650,092,596.39
  5. Step 5: Solve for x
    x = 538,650,092,596.39/820,117.89
  6. Step 6: Final answer
    x = 656,795.93

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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.