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Finding the Fourth Proportional to 376,803.70, 565,205.55 and 276,420.40

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Solution

The fourth proportional to 376,803.70, 565,205.55 and 276,420.40 is: 414,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,803.70 : 565,205.55 = 276,420.40 : x
  2. Step 2: Convert to fraction form
    376,803.70/565,205.55 = 276,420.40/x
  3. Step 3: Cross multiply
    376,803.70x = 565,205.55 × 276,420.40
  4. Step 4: Simplify right side
    376,803.70x = 156,234,344,213.22
  5. Step 5: Solve for x
    x = 156,234,344,213.22/376,803.70
  6. Step 6: Final answer
    x = 414,630.60

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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.