Home / 820,075.30-1,131,704.39-457,499.15

Finding the Fourth Proportional to 820,075.30, 1,131,704.39 and 457,499.15

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Solution

The fourth proportional to 820,075.30, 1,131,704.39 and 457,499.15 is: 631,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,075.30 : 1,131,704.39 = 457,499.15 : x
  2. Step 2: Convert to fraction form
    820,075.30/1,131,704.39 = 457,499.15/x
  3. Step 3: Cross multiply
    820,075.30x = 1,131,704.39 × 457,499.15
  4. Step 4: Simplify right side
    820,075.30x = 517,753,796,205.39
  5. Step 5: Solve for x
    x = 517,753,796,205.39/820,075.30
  6. Step 6: Final answer
    x = 631,349.09

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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.