Home / 806,827.20-1,210,240.80-541,406.40

Finding the Fourth Proportional to 806,827.20, 1,210,240.80 and 541,406.40

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Solution

The fourth proportional to 806,827.20, 1,210,240.80 and 541,406.40 is: 812,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,827.20 : 1,210,240.80 = 541,406.40 : x
  2. Step 2: Convert to fraction form
    806,827.20/1,210,240.80 = 541,406.40/x
  3. Step 3: Cross multiply
    806,827.20x = 1,210,240.80 × 541,406.40
  4. Step 4: Simplify right side
    806,827.20x = 655,232,114,661.12
  5. Step 5: Solve for x
    x = 655,232,114,661.12/806,827.20
  6. Step 6: Final answer
    x = 812,109.60

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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.