Home / 829,583.80-1,245,687.90-630,129.40

Finding the Fourth Proportional to 829,583.80, 1,245,687.90 and 630,129.40

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Solution

The fourth proportional to 829,583.80, 1,245,687.90 and 630,129.40 is: 946,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,583.80 : 1,245,687.90 = 630,129.40 : x
  2. Step 2: Convert to fraction form
    829,583.80/1,245,687.90 = 630,129.40/x
  3. Step 3: Cross multiply
    829,583.80x = 1,245,687.90 × 630,129.40
  4. Step 4: Simplify right side
    829,583.80x = 784,944,569,014.26
  5. Step 5: Solve for x
    x = 784,944,569,014.26/829,583.80
  6. Step 6: Final answer
    x = 946,190.81

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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.