Home / 820,313.28-1,131,863.32-471,386.28

Finding the Fourth Proportional to 820,313.28, 1,131,863.32 and 471,386.28

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Solution

The fourth proportional to 820,313.28, 1,131,863.32 and 471,386.28 is: 650,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,313.28 : 1,131,863.32 = 471,386.28 : x
  2. Step 2: Convert to fraction form
    820,313.28/1,131,863.32 = 471,386.28/x
  3. Step 3: Cross multiply
    820,313.28x = 1,131,863.32 × 471,386.28
  4. Step 4: Simplify right side
    820,313.28x = 533,544,839,883.25
  5. Step 5: Solve for x
    x = 533,544,839,883.25/820,313.28
  6. Step 6: Final answer
    x = 650,415.95

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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.