Home / 887,329.72-1,330,848.78-318,593.08

Finding the Fourth Proportional to 887,329.72, 1,330,848.78 and 318,593.08

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Solution

The fourth proportional to 887,329.72, 1,330,848.78 and 318,593.08 is: 477,837.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,329.72 : 1,330,848.78 = 318,593.08 : x
  2. Step 2: Convert to fraction form
    887,329.72/1,330,848.78 = 318,593.08/x
  3. Step 3: Cross multiply
    887,329.72x = 1,330,848.78 × 318,593.08
  4. Step 4: Simplify right side
    887,329.72x = 423,999,211,834.44
  5. Step 5: Solve for x
    x = 423,999,211,834.44/887,329.72
  6. Step 6: Final answer
    x = 477,837.27

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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.