Home / 815,411.70-1,223,117.55-683,535.60

Finding the Fourth Proportional to 815,411.70, 1,223,117.55 and 683,535.60

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Solution

The fourth proportional to 815,411.70, 1,223,117.55 and 683,535.60 is: 1,025,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,411.70 : 1,223,117.55 = 683,535.60 : x
  2. Step 2: Convert to fraction form
    815,411.70/1,223,117.55 = 683,535.60/x
  3. Step 3: Cross multiply
    815,411.70x = 1,223,117.55 × 683,535.60
  4. Step 4: Simplify right side
    815,411.70x = 836,044,388,409.78
  5. Step 5: Solve for x
    x = 836,044,388,409.78/815,411.70
  6. Step 6: Final answer
    x = 1,025,303.40

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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.