Home / 806,423.80-1,209,635.70-682,007.80

Finding the Fourth Proportional to 806,423.80, 1,209,635.70 and 682,007.80

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Solution

The fourth proportional to 806,423.80, 1,209,635.70 and 682,007.80 is: 1,023,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,423.80 : 1,209,635.70 = 682,007.80 : x
  2. Step 2: Convert to fraction form
    806,423.80/1,209,635.70 = 682,007.80/x
  3. Step 3: Cross multiply
    806,423.80x = 1,209,635.70 × 682,007.80
  4. Step 4: Simplify right side
    806,423.80x = 824,980,982,558.46
  5. Step 5: Solve for x
    x = 824,980,982,558.46/806,423.80
  6. Step 6: Final answer
    x = 1,023,011.70

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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.