Home / 1,178,169.40-1,766,087.70-578,639.80

Finding the Fourth Proportional to 1,178,169.40, 1,766,087.70 and 578,639.80

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Solution

The fourth proportional to 1,178,169.40, 1,766,087.70 and 578,639.80 is: 867,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,169.40 : 1,766,087.70 = 578,639.80 : x
  2. Step 2: Convert to fraction form
    1,178,169.40/1,766,087.70 = 578,639.80/x
  3. Step 3: Cross multiply
    1,178,169.40x = 1,766,087.70 × 578,639.80
  4. Step 4: Simplify right side
    1,178,169.40x = 1,021,928,633,510.46
  5. Step 5: Solve for x
    x = 1,021,928,633,510.46/1,178,169.40
  6. Step 6: Final answer
    x = 867,386.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.