Home / 1,078,040.40-1,617,065.40-279,265.20

Finding the Fourth Proportional to 1,078,040.40, 1,617,065.40 and 279,265.20

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Solution

The fourth proportional to 1,078,040.40, 1,617,065.40 and 279,265.20 is: 418,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,040.40 : 1,617,065.40 = 279,265.20 : x
  2. Step 2: Convert to fraction form
    1,078,040.40/1,617,065.40 = 279,265.20/x
  3. Step 3: Cross multiply
    1,078,040.40x = 1,617,065.40 × 279,265.20
  4. Step 4: Simplify right side
    1,078,040.40x = 451,590,092,344.08
  5. Step 5: Solve for x
    x = 451,590,092,344.08/1,078,040.40
  6. Step 6: Final answer
    x = 418,899.04

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Double scale
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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.