Home / 1,213,866.60-1,821,836.70-540,983.40

Finding the Fourth Proportional to 1,213,866.60, 1,821,836.70 and 540,983.40

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Solution

The fourth proportional to 1,213,866.60, 1,821,836.70 and 540,983.40 is: 811,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,866.60 : 1,821,836.70 = 540,983.40 : x
  2. Step 2: Convert to fraction form
    1,213,866.60/1,821,836.70 = 540,983.40/x
  3. Step 3: Cross multiply
    1,213,866.60x = 1,821,836.70 × 540,983.40
  4. Step 4: Simplify right side
    1,213,866.60x = 985,583,412,210.78
  5. Step 5: Solve for x
    x = 985,583,412,210.78/1,213,866.60
  6. Step 6: Final answer
    x = 811,937.17

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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.