Home / 880,769.34-1,215,467.91-478,361.34

Finding the Fourth Proportional to 880,769.34, 1,215,467.91 and 478,361.34

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Solution

The fourth proportional to 880,769.34, 1,215,467.91 and 478,361.34 is: 660,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,769.34 : 1,215,467.91 = 478,361.34 : x
  2. Step 2: Convert to fraction form
    880,769.34/1,215,467.91 = 478,361.34/x
  3. Step 3: Cross multiply
    880,769.34x = 1,215,467.91 × 478,361.34
  4. Step 4: Simplify right side
    880,769.34x = 581,432,858,154.60
  5. Step 5: Solve for x
    x = 581,432,858,154.60/880,769.34
  6. Step 6: Final answer
    x = 660,142.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.