Home / 1,427,057.79-2,140,379.11-415,908.30

Finding the Fourth Proportional to 1,427,057.79, 2,140,379.11 and 415,908.30

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Solution

The fourth proportional to 1,427,057.79, 2,140,379.11 and 415,908.30 is: 623,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,057.79 : 2,140,379.11 = 415,908.30 : x
  2. Step 2: Convert to fraction form
    1,427,057.79/2,140,379.11 = 415,908.30/x
  3. Step 3: Cross multiply
    1,427,057.79x = 2,140,379.11 × 415,908.30
  4. Step 4: Simplify right side
    1,427,057.79x = 890,201,434,916.07
  5. Step 5: Solve for x
    x = 890,201,434,916.07/1,427,057.79
  6. Step 6: Final answer
    x = 623,801.95

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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.