Home / 877,124.58-1,210,418.80-489,945.39

Finding the Fourth Proportional to 877,124.58, 1,210,418.80 and 489,945.39

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Solution

The fourth proportional to 877,124.58, 1,210,418.80 and 489,945.39 is: 676,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,124.58 : 1,210,418.80 = 489,945.39 : x
  2. Step 2: Convert to fraction form
    877,124.58/1,210,418.80 = 489,945.39/x
  3. Step 3: Cross multiply
    877,124.58x = 1,210,418.80 × 489,945.39
  4. Step 4: Simplify right side
    877,124.58x = 593,039,111,029.33
  5. Step 5: Solve for x
    x = 593,039,111,029.33/877,124.58
  6. Step 6: Final answer
    x = 676,117.31

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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.