Home / 1,078,300.80-1,617,451.20-517,046.40

Finding the Fourth Proportional to 1,078,300.80, 1,617,451.20 and 517,046.40

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Solution

The fourth proportional to 1,078,300.80, 1,617,451.20 and 517,046.40 is: 775,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,300.80 : 1,617,451.20 = 517,046.40 : x
  2. Step 2: Convert to fraction form
    1,078,300.80/1,617,451.20 = 517,046.40/x
  3. Step 3: Cross multiply
    1,078,300.80x = 1,617,451.20 × 517,046.40
  4. Step 4: Simplify right side
    1,078,300.80x = 836,297,320,135.68
  5. Step 5: Solve for x
    x = 836,297,320,135.68/1,078,300.80
  6. Step 6: Final answer
    x = 775,569.60

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Double scale
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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.