Home / 778,842.30-1,168,919.55-305,867.10

Finding the Fourth Proportional to 778,842.30, 1,168,919.55 and 305,867.10

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Solution

The fourth proportional to 778,842.30, 1,168,919.55 and 305,867.10 is: 459,058.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,842.30 : 1,168,919.55 = 305,867.10 : x
  2. Step 2: Convert to fraction form
    778,842.30/1,168,919.55 = 305,867.10/x
  3. Step 3: Cross multiply
    778,842.30x = 1,168,919.55 × 305,867.10
  4. Step 4: Simplify right side
    778,842.30x = 357,534,032,891.81
  5. Step 5: Solve for x
    x = 357,534,032,891.81/778,842.30
  6. Step 6: Final answer
    x = 459,058.31

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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.