Home / 877,180.16-1,210,379.79-489,947.87

Finding the Fourth Proportional to 877,180.16, 1,210,379.79 and 489,947.87

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Solution

The fourth proportional to 877,180.16, 1,210,379.79 and 489,947.87 is: 676,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,180.16 : 1,210,379.79 = 489,947.87 : x
  2. Step 2: Convert to fraction form
    877,180.16/1,210,379.79 = 489,947.87/x
  3. Step 3: Cross multiply
    877,180.16x = 1,210,379.79 × 489,947.87
  4. Step 4: Simplify right side
    877,180.16x = 593,022,993,949.65
  5. Step 5: Solve for x
    x = 593,022,993,949.65/877,180.16
  6. Step 6: Final answer
    x = 676,056.10

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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.