Home / 1,071,260.78-1,478,289.11-587,815.32

Finding the Fourth Proportional to 1,071,260.78, 1,478,289.11 and 587,815.32

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Solution

The fourth proportional to 1,071,260.78, 1,478,289.11 and 587,815.32 is: 811,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,260.78 : 1,478,289.11 = 587,815.32 : x
  2. Step 2: Convert to fraction form
    1,071,260.78/1,478,289.11 = 587,815.32/x
  3. Step 3: Cross multiply
    1,071,260.78x = 1,478,289.11 × 587,815.32
  4. Step 4: Simplify right side
    1,071,260.78x = 868,960,983,308.09
  5. Step 5: Solve for x
    x = 868,960,983,308.09/1,071,260.78
  6. Step 6: Final answer
    x = 811,157.28

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.