Home / 1,290,564.90-1,934,103.56-491,410.50

Finding the Fourth Proportional to 1,290,564.90, 1,934,103.56 and 491,410.50

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Solution

The fourth proportional to 1,290,564.90, 1,934,103.56 and 491,410.50 is: 736,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,564.90 : 1,934,103.56 = 491,410.50 : x
  2. Step 2: Convert to fraction form
    1,290,564.90/1,934,103.56 = 491,410.50/x
  3. Step 3: Cross multiply
    1,290,564.90x = 1,934,103.56 × 491,410.50
  4. Step 4: Simplify right side
    1,290,564.90x = 950,438,797,471.38
  5. Step 5: Solve for x
    x = 950,438,797,471.38/1,290,564.90
  6. Step 6: Final answer
    x = 736,451.76

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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.