Home / 815,732.50-1,223,722.86-416,155.06

Finding the Fourth Proportional to 815,732.50, 1,223,722.86 and 416,155.06

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Solution

The fourth proportional to 815,732.50, 1,223,722.86 and 416,155.06 is: 624,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,732.50 : 1,223,722.86 = 416,155.06 : x
  2. Step 2: Convert to fraction form
    815,732.50/1,223,722.86 = 416,155.06/x
  3. Step 3: Cross multiply
    815,732.50x = 1,223,722.86 × 416,155.06
  4. Step 4: Simplify right side
    815,732.50x = 509,258,460,226.67
  5. Step 5: Solve for x
    x = 509,258,460,226.67/815,732.50
  6. Step 6: Final answer
    x = 624,295.91

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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.