Home / 820,563.84-1,131,485.41-533,551.68

Finding the Fourth Proportional to 820,563.84, 1,131,485.41 and 533,551.68

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Solution

The fourth proportional to 820,563.84, 1,131,485.41 and 533,551.68 is: 735,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,563.84 : 1,131,485.41 = 533,551.68 : x
  2. Step 2: Convert to fraction form
    820,563.84/1,131,485.41 = 533,551.68/x
  3. Step 3: Cross multiply
    820,563.84x = 1,131,485.41 × 533,551.68
  4. Step 4: Simplify right side
    820,563.84x = 603,705,941,400.99
  5. Step 5: Solve for x
    x = 603,705,941,400.99/820,563.84
  6. Step 6: Final answer
    x = 735,720.87

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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.