Home / 820,126.11-1,131,774.74-457,550.04

Finding the Fourth Proportional to 820,126.11, 1,131,774.74 and 457,550.04

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Solution

The fourth proportional to 820,126.11, 1,131,774.74 and 457,550.04 is: 631,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,126.11 : 1,131,774.74 = 457,550.04 : x
  2. Step 2: Convert to fraction form
    820,126.11/1,131,774.74 = 457,550.04/x
  3. Step 3: Cross multiply
    820,126.11x = 1,131,774.74 × 457,550.04
  4. Step 4: Simplify right side
    820,126.11x = 517,843,577,557.99
  5. Step 5: Solve for x
    x = 517,843,577,557.99/820,126.11
  6. Step 6: Final answer
    x = 631,419.45

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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.