Home / 771,201.20-1,156,801.80-455,495.60

Finding the Fourth Proportional to 771,201.20, 1,156,801.80 and 455,495.60

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Solution

The fourth proportional to 771,201.20, 1,156,801.80 and 455,495.60 is: 683,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,201.20 : 1,156,801.80 = 455,495.60 : x
  2. Step 2: Convert to fraction form
    771,201.20/1,156,801.80 = 455,495.60/x
  3. Step 3: Cross multiply
    771,201.20x = 1,156,801.80 × 455,495.60
  4. Step 4: Simplify right side
    771,201.20x = 526,918,129,972.08
  5. Step 5: Solve for x
    x = 526,918,129,972.08/771,201.20
  6. Step 6: Final answer
    x = 683,243.40

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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.