Home / 866,965.20-1,300,457.37-387,217.37

Finding the Fourth Proportional to 866,965.20, 1,300,457.37 and 387,217.37

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Solution

The fourth proportional to 866,965.20, 1,300,457.37 and 387,217.37 is: 580,830.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,965.20 : 1,300,457.37 = 387,217.37 : x
  2. Step 2: Convert to fraction form
    866,965.20/1,300,457.37 = 387,217.37/x
  3. Step 3: Cross multiply
    866,965.20x = 1,300,457.37 × 387,217.37
  4. Step 4: Simplify right side
    866,965.20x = 503,559,676,106.23
  5. Step 5: Solve for x
    x = 503,559,676,106.23/866,965.20
  6. Step 6: Final answer
    x = 580,830.32

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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.