Home / 829,520.80-1,244,281.20-815,696.80

Finding the Fourth Proportional to 829,520.80, 1,244,281.20 and 815,696.80

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Solution

The fourth proportional to 829,520.80, 1,244,281.20 and 815,696.80 is: 1,223,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,520.80 : 1,244,281.20 = 815,696.80 : x
  2. Step 2: Convert to fraction form
    829,520.80/1,244,281.20 = 815,696.80/x
  3. Step 3: Cross multiply
    829,520.80x = 1,244,281.20 × 815,696.80
  4. Step 4: Simplify right side
    829,520.80x = 1,014,956,193,140.16
  5. Step 5: Solve for x
    x = 1,014,956,193,140.16/829,520.80
  6. Step 6: Final answer
    x = 1,223,545.20

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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.