Home / 1,427,057.28-2,140,378.36-415,907.80

Finding the Fourth Proportional to 1,427,057.28, 2,140,378.36 and 415,907.80

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Solution

The fourth proportional to 1,427,057.28, 2,140,378.36 and 415,907.80 is: 623,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,057.28 : 2,140,378.36 = 415,907.80 : x
  2. Step 2: Convert to fraction form
    1,427,057.28/2,140,378.36 = 415,907.80/x
  3. Step 3: Cross multiply
    1,427,057.28x = 2,140,378.36 × 415,907.80
  4. Step 4: Simplify right side
    1,427,057.28x = 890,200,054,875.21
  5. Step 5: Solve for x
    x = 890,200,054,875.21/1,427,057.28
  6. Step 6: Final answer
    x = 623,801.21

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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.