Home / 820,133.75-1,131,785.29-457,557.67

Finding the Fourth Proportional to 820,133.75, 1,131,785.29 and 457,557.67

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Solution

The fourth proportional to 820,133.75, 1,131,785.29 and 457,557.67 is: 631,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,133.75 : 1,131,785.29 = 457,557.67 : x
  2. Step 2: Convert to fraction form
    820,133.75/1,131,785.29 = 457,557.67/x
  3. Step 3: Cross multiply
    820,133.75x = 1,131,785.29 × 457,557.67
  4. Step 4: Simplify right side
    820,133.75x = 517,857,042,219.35
  5. Step 5: Solve for x
    x = 517,857,042,219.35/820,133.75
  6. Step 6: Final answer
    x = 631,429.98

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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.