Home / 1,385,765.20-2,078,356.20-587,072.80

Finding the Fourth Proportional to 1,385,765.20, 2,078,356.20 and 587,072.80

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Solution

The fourth proportional to 1,385,765.20, 2,078,356.20 and 587,072.80 is: 880,485.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,765.20 : 2,078,356.20 = 587,072.80 : x
  2. Step 2: Convert to fraction form
    1,385,765.20/2,078,356.20 = 587,072.80/x
  3. Step 3: Cross multiply
    1,385,765.20x = 2,078,356.20 × 587,072.80
  4. Step 4: Simplify right side
    1,385,765.20x = 1,220,146,393,731.36
  5. Step 5: Solve for x
    x = 1,220,146,393,731.36/1,385,765.20
  6. Step 6: Final answer
    x = 880,485.67

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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.