Home / 1,438,365.89-2,156,987.90-539,317.73

Finding the Fourth Proportional to 1,438,365.89, 2,156,987.90 and 539,317.73

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Solution

The fourth proportional to 1,438,365.89, 2,156,987.90 and 539,317.73 is: 808,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,365.89 : 2,156,987.90 = 539,317.73 : x
  2. Step 2: Convert to fraction form
    1,438,365.89/2,156,987.90 = 539,317.73/x
  3. Step 3: Cross multiply
    1,438,365.89x = 2,156,987.90 × 539,317.73
  4. Step 4: Simplify right side
    1,438,365.89x = 1,163,301,808,428.82
  5. Step 5: Solve for x
    x = 1,163,301,808,428.82/1,438,365.89
  6. Step 6: Final answer
    x = 808,766.27

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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.