Home / 877,178.25-1,210,732.79-572,015.61

Finding the Fourth Proportional to 877,178.25, 1,210,732.79 and 572,015.61

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Solution

The fourth proportional to 877,178.25, 1,210,732.79 and 572,015.61 is: 789,529.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,178.25 : 1,210,732.79 = 572,015.61 : x
  2. Step 2: Convert to fraction form
    877,178.25/1,210,732.79 = 572,015.61/x
  3. Step 3: Cross multiply
    877,178.25x = 1,210,732.79 × 572,015.61
  4. Step 4: Simplify right side
    877,178.25x = 692,558,052,558.77
  5. Step 5: Solve for x
    x = 692,558,052,558.77/877,178.25
  6. Step 6: Final answer
    x = 789,529.44

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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.