Home / 778,854.80-1,168,589.40-305,459.60

Finding the Fourth Proportional to 778,854.80, 1,168,589.40 and 305,459.60

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Solution

The fourth proportional to 778,854.80, 1,168,589.40 and 305,459.60 is: 458,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,854.80 : 1,168,589.40 = 305,459.60 : x
  2. Step 2: Convert to fraction form
    778,854.80/1,168,589.40 = 305,459.60/x
  3. Step 3: Cross multiply
    778,854.80x = 1,168,589.40 × 305,459.60
  4. Step 4: Simplify right side
    778,854.80x = 356,956,850,688.24
  5. Step 5: Solve for x
    x = 356,956,850,688.24/778,854.80
  6. Step 6: Final answer
    x = 458,309.88

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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.