Home / 1,317,833.80-1,976,750.70-320,561.80

Finding the Fourth Proportional to 1,317,833.80, 1,976,750.70 and 320,561.80

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Solution

The fourth proportional to 1,317,833.80, 1,976,750.70 and 320,561.80 is: 480,842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,833.80 : 1,976,750.70 = 320,561.80 : x
  2. Step 2: Convert to fraction form
    1,317,833.80/1,976,750.70 = 320,561.80/x
  3. Step 3: Cross multiply
    1,317,833.80x = 1,976,750.70 × 320,561.80
  4. Step 4: Simplify right side
    1,317,833.80x = 633,670,762,543.26
  5. Step 5: Solve for x
    x = 633,670,762,543.26/1,317,833.80
  6. Step 6: Final answer
    x = 480,842.70

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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.