Home / 815,998.32-1,125,608.52-509,542.56

Finding the Fourth Proportional to 815,998.32, 1,125,608.52 and 509,542.56

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Solution

The fourth proportional to 815,998.32, 1,125,608.52 and 509,542.56 is: 702,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,998.32 : 1,125,608.52 = 509,542.56 : x
  2. Step 2: Convert to fraction form
    815,998.32/1,125,608.52 = 509,542.56/x
  3. Step 3: Cross multiply
    815,998.32x = 1,125,608.52 × 509,542.56
  4. Step 4: Simplify right side
    815,998.32x = 573,545,446,838.61
  5. Step 5: Solve for x
    x = 573,545,446,838.61/815,998.32
  6. Step 6: Final answer
    x = 702,875.77

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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.