Home / 820,454.46-1,230,826.14-280,583.82

Finding the Fourth Proportional to 820,454.46, 1,230,826.14 and 280,583.82

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Solution

The fourth proportional to 820,454.46, 1,230,826.14 and 280,583.82 is: 420,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,454.46 : 1,230,826.14 = 280,583.82 : x
  2. Step 2: Convert to fraction form
    820,454.46/1,230,826.14 = 280,583.82/x
  3. Step 3: Cross multiply
    820,454.46x = 1,230,826.14 × 280,583.82
  4. Step 4: Simplify right side
    820,454.46x = 345,349,900,117.06
  5. Step 5: Solve for x
    x = 345,349,900,117.06/820,454.46
  6. Step 6: Final answer
    x = 420,925.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.