Home / 1,139,165.80-1,706,415.90-578,516.20

Finding the Fourth Proportional to 1,139,165.80, 1,706,415.90 and 578,516.20

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Solution

The fourth proportional to 1,139,165.80, 1,706,415.90 and 578,516.20 is: 866,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,165.80 : 1,706,415.90 = 578,516.20 : x
  2. Step 2: Convert to fraction form
    1,139,165.80/1,706,415.90 = 578,516.20/x
  3. Step 3: Cross multiply
    1,139,165.80x = 1,706,415.90 × 578,516.20
  4. Step 4: Simplify right side
    1,139,165.80x = 987,189,242,087.58
  5. Step 5: Solve for x
    x = 987,189,242,087.58/1,139,165.80
  6. Step 6: Final answer
    x = 866,589.61

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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.