Home / 820,140.30-1,230,210.45-482,834.70

Finding the Fourth Proportional to 820,140.30, 1,230,210.45 and 482,834.70

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Solution

The fourth proportional to 820,140.30, 1,230,210.45 and 482,834.70 is: 724,252.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,140.30 : 1,230,210.45 = 482,834.70 : x
  2. Step 2: Convert to fraction form
    820,140.30/1,230,210.45 = 482,834.70/x
  3. Step 3: Cross multiply
    820,140.30x = 1,230,210.45 × 482,834.70
  4. Step 4: Simplify right side
    820,140.30x = 593,988,293,562.62
  5. Step 5: Solve for x
    x = 593,988,293,562.62/820,140.30
  6. Step 6: Final answer
    x = 724,252.05

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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.