Home / 850,706.40-1,274,485.20-495,890.40

Finding the Fourth Proportional to 850,706.40, 1,274,485.20 and 495,890.40

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Solution

The fourth proportional to 850,706.40, 1,274,485.20 and 495,890.40 is: 742,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,706.40 : 1,274,485.20 = 495,890.40 : x
  2. Step 2: Convert to fraction form
    850,706.40/1,274,485.20 = 495,890.40/x
  3. Step 3: Cross multiply
    850,706.40x = 1,274,485.20 × 495,890.40
  4. Step 4: Simplify right side
    850,706.40x = 632,004,975,622.08
  5. Step 5: Solve for x
    x = 632,004,975,622.08/850,706.40
  6. Step 6: Final answer
    x = 742,917.86

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1.5x scale

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.