Home / 1,087,975.72-1,632,289.59-439,217.89

Finding the Fourth Proportional to 1,087,975.72, 1,632,289.59 and 439,217.89

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Solution

The fourth proportional to 1,087,975.72, 1,632,289.59 and 439,217.89 is: 658,958.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,975.72 : 1,632,289.59 = 439,217.89 : x
  2. Step 2: Convert to fraction form
    1,087,975.72/1,632,289.59 = 439,217.89/x
  3. Step 3: Cross multiply
    1,087,975.72x = 1,632,289.59 × 439,217.89
  4. Step 4: Simplify right side
    1,087,975.72x = 716,930,789,588.77
  5. Step 5: Solve for x
    x = 716,930,789,588.77/1,087,975.72
  6. Step 6: Final answer
    x = 658,958.45

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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.