Home / 3,120,661.65-4,681,504.80-961,687.14

Finding the Fourth Proportional to 3,120,661.65, 4,681,504.80 and 961,687.14

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Solution

The fourth proportional to 3,120,661.65, 4,681,504.80 and 961,687.14 is: 1,442,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,661.65 : 4,681,504.80 = 961,687.14 : x
  2. Step 2: Convert to fraction form
    3,120,661.65/4,681,504.80 = 961,687.14/x
  3. Step 3: Cross multiply
    3,120,661.65x = 4,681,504.80 × 961,687.14
  4. Step 4: Simplify right side
    3,120,661.65x = 4,502,142,962,008.27
  5. Step 5: Solve for x
    x = 4,502,142,962,008.27/3,120,661.65
  6. Step 6: Final answer
    x = 1,442,688.59

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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.