Home / 886,905.80-1,330,358.70-381,708.80

Finding the Fourth Proportional to 886,905.80, 1,330,358.70 and 381,708.80

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Solution

The fourth proportional to 886,905.80, 1,330,358.70 and 381,708.80 is: 572,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,905.80 : 1,330,358.70 = 381,708.80 : x
  2. Step 2: Convert to fraction form
    886,905.80/1,330,358.70 = 381,708.80/x
  3. Step 3: Cross multiply
    886,905.80x = 1,330,358.70 × 381,708.80
  4. Step 4: Simplify right side
    886,905.80x = 507,809,622,946.56
  5. Step 5: Solve for x
    x = 507,809,622,946.56/886,905.80
  6. Step 6: Final answer
    x = 572,563.20

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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.