Home / 1,161,703.85-1,603,131.09-645,462.50

Finding the Fourth Proportional to 1,161,703.85, 1,603,131.09 and 645,462.50

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Solution

The fourth proportional to 1,161,703.85, 1,603,131.09 and 645,462.50 is: 890,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,703.85 : 1,603,131.09 = 645,462.50 : x
  2. Step 2: Convert to fraction form
    1,161,703.85/1,603,131.09 = 645,462.50/x
  3. Step 3: Cross multiply
    1,161,703.85x = 1,603,131.09 × 645,462.50
  4. Step 4: Simplify right side
    1,161,703.85x = 1,034,761,001,179.13
  5. Step 5: Solve for x
    x = 1,034,761,001,179.13/1,161,703.85
  6. Step 6: Final answer
    x = 890,727.01

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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.