Home / 1,217,125.80-1,825,688.70-543,205.80

Finding the Fourth Proportional to 1,217,125.80, 1,825,688.70 and 543,205.80

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Solution

The fourth proportional to 1,217,125.80, 1,825,688.70 and 543,205.80 is: 814,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,125.80 : 1,825,688.70 = 543,205.80 : x
  2. Step 2: Convert to fraction form
    1,217,125.80/1,825,688.70 = 543,205.80/x
  3. Step 3: Cross multiply
    1,217,125.80x = 1,825,688.70 × 543,205.80
  4. Step 4: Simplify right side
    1,217,125.80x = 991,724,690,834.46
  5. Step 5: Solve for x
    x = 991,724,690,834.46/1,217,125.80
  6. Step 6: Final answer
    x = 814,808.70

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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.