Home / 481,206.20-721,809.30-292,249.40

Finding the Fourth Proportional to 481,206.20, 721,809.30 and 292,249.40

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Solution

The fourth proportional to 481,206.20, 721,809.30 and 292,249.40 is: 438,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,206.20 : 721,809.30 = 292,249.40 : x
  2. Step 2: Convert to fraction form
    481,206.20/721,809.30 = 292,249.40/x
  3. Step 3: Cross multiply
    481,206.20x = 721,809.30 × 292,249.40
  4. Step 4: Simplify right side
    481,206.20x = 210,948,334,839.42
  5. Step 5: Solve for x
    x = 210,948,334,839.42/481,206.20
  6. Step 6: Final answer
    x = 438,374.10

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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.