Home / 887,172.40-1,330,758.60-326,425.60

Finding the Fourth Proportional to 887,172.40, 1,330,758.60 and 326,425.60

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Solution

The fourth proportional to 887,172.40, 1,330,758.60 and 326,425.60 is: 489,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,172.40 : 1,330,758.60 = 326,425.60 : x
  2. Step 2: Convert to fraction form
    887,172.40/1,330,758.60 = 326,425.60/x
  3. Step 3: Cross multiply
    887,172.40x = 1,330,758.60 × 326,425.60
  4. Step 4: Simplify right side
    887,172.40x = 434,393,674,460.16
  5. Step 5: Solve for x
    x = 434,393,674,460.16/887,172.40
  6. Step 6: Final answer
    x = 489,638.40

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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.