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Finding the Fourth Proportional to 609,060.48, 840,403.20 and 382,544.64

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Solution

The fourth proportional to 609,060.48, 840,403.20 and 382,544.64 is: 527,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,060.48 : 840,403.20 = 382,544.64 : x
  2. Step 2: Convert to fraction form
    609,060.48/840,403.20 = 382,544.64/x
  3. Step 3: Cross multiply
    609,060.48x = 840,403.20 × 382,544.64
  4. Step 4: Simplify right side
    609,060.48x = 321,491,739,598.85
  5. Step 5: Solve for x
    x = 321,491,739,598.85/609,060.48
  6. Step 6: Final answer
    x = 527,848.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.