Home / 1,438,365.64-2,156,987.53-539,317.48

Finding the Fourth Proportional to 1,438,365.64, 2,156,987.53 and 539,317.48

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Solution

The fourth proportional to 1,438,365.64, 2,156,987.53 and 539,317.48 is: 808,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,365.64 : 2,156,987.53 = 539,317.48 : x
  2. Step 2: Convert to fraction form
    1,438,365.64/2,156,987.53 = 539,317.48/x
  3. Step 3: Cross multiply
    1,438,365.64x = 2,156,987.53 × 539,317.48
  4. Step 4: Simplify right side
    1,438,365.64x = 1,163,301,065,589.50
  5. Step 5: Solve for x
    x = 1,163,301,065,589.50/1,438,365.64
  6. Step 6: Final answer
    x = 808,765.89

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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.