Home / 545,216.20-816,074.70-426,243.40

Finding the Fourth Proportional to 545,216.20, 816,074.70 and 426,243.40

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Solution

The fourth proportional to 545,216.20, 816,074.70 and 426,243.40 is: 637,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,216.20 : 816,074.70 = 426,243.40 : x
  2. Step 2: Convert to fraction form
    545,216.20/816,074.70 = 426,243.40/x
  3. Step 3: Cross multiply
    545,216.20x = 816,074.70 × 426,243.40
  4. Step 4: Simplify right side
    545,216.20x = 347,846,454,781.98
  5. Step 5: Solve for x
    x = 347,846,454,781.98/545,216.20
  6. Step 6: Final answer
    x = 637,997.28

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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.