Home / 1,178,158.40-1,766,071.20-578,628.80

Finding the Fourth Proportional to 1,178,158.40, 1,766,071.20 and 578,628.80

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Solution

The fourth proportional to 1,178,158.40, 1,766,071.20 and 578,628.80 is: 867,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,158.40 : 1,766,071.20 = 578,628.80 : x
  2. Step 2: Convert to fraction form
    1,178,158.40/1,766,071.20 = 578,628.80/x
  3. Step 3: Cross multiply
    1,178,158.40x = 1,766,071.20 × 578,628.80
  4. Step 4: Simplify right side
    1,178,158.40x = 1,021,899,659,170.56
  5. Step 5: Solve for x
    x = 1,021,899,659,170.56/1,178,158.40
  6. Step 6: Final answer
    x = 867,370.35

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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.