Home / 873,420.64-1,309,351.78-340,817.80

Finding the Fourth Proportional to 873,420.64, 1,309,351.78 and 340,817.80

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Solution

The fourth proportional to 873,420.64, 1,309,351.78 and 340,817.80 is: 510,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,420.64 : 1,309,351.78 = 340,817.80 : x
  2. Step 2: Convert to fraction form
    873,420.64/1,309,351.78 = 340,817.80/x
  3. Step 3: Cross multiply
    873,420.64x = 1,309,351.78 × 340,817.80
  4. Step 4: Simplify right side
    873,420.64x = 446,250,393,085.68
  5. Step 5: Solve for x
    x = 446,250,393,085.68/873,420.64
  6. Step 6: Final answer
    x = 510,922.66

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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.