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Finding the Fourth Proportional to 551,851.80, 827,777.70 and 383,890.20

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Solution

The fourth proportional to 551,851.80, 827,777.70 and 383,890.20 is: 575,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,851.80 : 827,777.70 = 383,890.20 : x
  2. Step 2: Convert to fraction form
    551,851.80/827,777.70 = 383,890.20/x
  3. Step 3: Cross multiply
    551,851.80x = 827,777.70 × 383,890.20
  4. Step 4: Simplify right side
    551,851.80x = 317,775,746,808.54
  5. Step 5: Solve for x
    x = 317,775,746,808.54/551,851.80
  6. Step 6: Final answer
    x = 575,835.30

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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.