Home / 815,814.80-1,223,722.20-532,379.60

Finding the Fourth Proportional to 815,814.80, 1,223,722.20 and 532,379.60

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Solution

The fourth proportional to 815,814.80, 1,223,722.20 and 532,379.60 is: 798,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,814.80 : 1,223,722.20 = 532,379.60 : x
  2. Step 2: Convert to fraction form
    815,814.80/1,223,722.20 = 532,379.60/x
  3. Step 3: Cross multiply
    815,814.80x = 1,223,722.20 × 532,379.60
  4. Step 4: Simplify right side
    815,814.80x = 651,484,735,347.12
  5. Step 5: Solve for x
    x = 651,484,735,347.12/815,814.80
  6. Step 6: Final answer
    x = 798,569.40

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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.