Home / 726,890.40-1,090,335.60-411,962.40

Finding the Fourth Proportional to 726,890.40, 1,090,335.60 and 411,962.40

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Solution

The fourth proportional to 726,890.40, 1,090,335.60 and 411,962.40 is: 617,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,890.40 : 1,090,335.60 = 411,962.40 : x
  2. Step 2: Convert to fraction form
    726,890.40/1,090,335.60 = 411,962.40/x
  3. Step 3: Cross multiply
    726,890.40x = 1,090,335.60 × 411,962.40
  4. Step 4: Simplify right side
    726,890.40x = 449,177,270,581.44
  5. Step 5: Solve for x
    x = 449,177,270,581.44/726,890.40
  6. Step 6: Final answer
    x = 617,943.60

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Double scale
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Similar ratio
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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.