Home / 887,052.40-1,330,578.60-255,986.80

Finding the Fourth Proportional to 887,052.40, 1,330,578.60 and 255,986.80

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Solution

The fourth proportional to 887,052.40, 1,330,578.60 and 255,986.80 is: 383,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,052.40 : 1,330,578.60 = 255,986.80 : x
  2. Step 2: Convert to fraction form
    887,052.40/1,330,578.60 = 255,986.80/x
  3. Step 3: Cross multiply
    887,052.40x = 1,330,578.60 × 255,986.80
  4. Step 4: Simplify right side
    887,052.40x = 340,610,557,962.48
  5. Step 5: Solve for x
    x = 340,610,557,962.48/887,052.40
  6. Step 6: Final answer
    x = 383,980.20

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Double scale
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Similar ratio
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1.5x scale

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.