Home / 806,687.20-1,210,030.80-541,266.40

Finding the Fourth Proportional to 806,687.20, 1,210,030.80 and 541,266.40

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Solution

The fourth proportional to 806,687.20, 1,210,030.80 and 541,266.40 is: 811,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,687.20 : 1,210,030.80 = 541,266.40 : x
  2. Step 2: Convert to fraction form
    806,687.20/1,210,030.80 = 541,266.40/x
  3. Step 3: Cross multiply
    806,687.20x = 1,210,030.80 × 541,266.40
  4. Step 4: Simplify right side
    806,687.20x = 654,949,015,005.12
  5. Step 5: Solve for x
    x = 654,949,015,005.12/806,687.20
  6. Step 6: Final answer
    x = 811,899.60

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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.