Home / 1,178,155.40-1,766,066.70-578,625.80

Finding the Fourth Proportional to 1,178,155.40, 1,766,066.70 and 578,625.80

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Solution

The fourth proportional to 1,178,155.40, 1,766,066.70 and 578,625.80 is: 867,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,155.40 : 1,766,066.70 = 578,625.80 : x
  2. Step 2: Convert to fraction form
    1,178,155.40/1,766,066.70 = 578,625.80/x
  3. Step 3: Cross multiply
    1,178,155.40x = 1,766,066.70 × 578,625.80
  4. Step 4: Simplify right side
    1,178,155.40x = 1,021,891,757,140.86
  5. Step 5: Solve for x
    x = 1,021,891,757,140.86/1,178,155.40
  6. Step 6: Final answer
    x = 867,365.85

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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.