Home / 820,126.98-1,131,773.56-457,529.21

Finding the Fourth Proportional to 820,126.98, 1,131,773.56 and 457,529.21

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Solution

The fourth proportional to 820,126.98, 1,131,773.56 and 457,529.21 is: 631,389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,126.98 : 1,131,773.56 = 457,529.21 : x
  2. Step 2: Convert to fraction form
    820,126.98/1,131,773.56 = 457,529.21/x
  3. Step 3: Cross multiply
    820,126.98x = 1,131,773.56 × 457,529.21
  4. Step 4: Simplify right side
    820,126.98x = 517,819,462,805.69
  5. Step 5: Solve for x
    x = 517,819,462,805.69/820,126.98
  6. Step 6: Final answer
    x = 631,389.38

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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.