Home / 887,006.40-1,330,250.40-318,321.60

Finding the Fourth Proportional to 887,006.40, 1,330,250.40 and 318,321.60

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Solution

The fourth proportional to 887,006.40, 1,330,250.40 and 318,321.60 is: 477,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,006.40 : 1,330,250.40 = 318,321.60 : x
  2. Step 2: Convert to fraction form
    887,006.40/1,330,250.40 = 318,321.60/x
  3. Step 3: Cross multiply
    887,006.40x = 1,330,250.40 × 318,321.60
  4. Step 4: Simplify right side
    887,006.40x = 423,447,435,728.64
  5. Step 5: Solve for x
    x = 423,447,435,728.64/887,006.40
  6. Step 6: Final answer
    x = 477,389.38

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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.