Home / 726,836.40-1,090,254.60-411,908.40

Finding the Fourth Proportional to 726,836.40, 1,090,254.60 and 411,908.40

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Solution

The fourth proportional to 726,836.40, 1,090,254.60 and 411,908.40 is: 617,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,836.40 : 1,090,254.60 = 411,908.40 : x
  2. Step 2: Convert to fraction form
    726,836.40/1,090,254.60 = 411,908.40/x
  3. Step 3: Cross multiply
    726,836.40x = 1,090,254.60 × 411,908.40
  4. Step 4: Simplify right side
    726,836.40x = 449,085,027,878.64
  5. Step 5: Solve for x
    x = 449,085,027,878.64/726,836.40
  6. Step 6: Final answer
    x = 617,862.60

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1.5x scale

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.